Chrysler Vehicle Models Aspen 2007-2009 Torque Specifications
Chrysler Vehicle Models Aspen 2007-2009

Chrysler Vehicle Models Aspen 2007-2009 Torque Specifications

Complete Chrysler Vehicle Models Aspen 2007-2009 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Torque Calculator

Convert between different torque units

4.7l Engine

Torque specifications for 4.7L Engine

Cylinder Head

1

Cylinder Head Bolts

M12 x 1.75
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 90° 3. 90°
Important Notes
Tighten in sequence. First torque all bolts to 20 ft-lbs, then rotate all bolts an additional 90 degrees, then rotate all bolts an additional 90 degrees.
2

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar M8 applications. Tighten evenly.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper rocker arm alignment during installation. Tighten evenly.
4

Spark Plugs

M14 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Do not overtighten spark plugs. Apply anti-seize compound to the threads, if specified by the manufacturer. Ensure proper seating before torquing.

Engine Block

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
100 ft-lbs (135 N·m)
Important Notes
Lubricate bolt threads. Tighten evenly.
2

Connecting Rod Nuts

M9 x 1.0
Torque Specification
1. 45 ft-lbs (61 N·m) 2. 90°
Important Notes
Tighten to 45 ft-lbs, then rotate an additional 90 degrees. Estimated size. Lubricate threads with clean engine oil.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket. Tighten in a crisscross pattern.
4

Oil Filter Housing Bolt

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket/O-ring. Tighten evenly.
5

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use a new crush washer. Do not overtighten.

Intake System

1

Intake Manifold Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten in a crisscross pattern to avoid warping. Tighten in multiple passes, in a crisscross pattern.
2

Throttle Body Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly to prevent air leaks.
3

EGR Valve Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly to ensure a good seal.
4

Fuel Rail Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly to prevent fuel leaks.
5

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly to prevent fuel leaks.

Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten in a sequence from the center outwards in a spiral pattern. Tighten in multiple passes.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure proper tensioner alignment. Tighten evenly.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
Ensure proper camshaft and sprocket alignment. Tighten to specifications.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
Ensure proper pulley seating. Use new bolt if specified.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket. Tighten evenly.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket. Tighten evenly.

Valve Cover

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket. Tighten evenly. Do not over-tighten to prevent gasket damage.
2

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten evenly.

Flywheel

1

Flywheel Bolts

M10 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Tighten in a star pattern.

42rle Transmission

Torque specifications for 42rle Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper alignment of transmission before tightening. Use new bolts if specified in the service manual.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even pressure and a proper seal. Using a new gasket is recommended.

Transmission Drain Fill Plugs

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sealing washer or sealant is used. Do not over-tighten.

Transmission Bellhousing

1

Transmission Bellhousing Bolts

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Torque may vary slightly based on location and bolt grade. It is important to ensure that the transmission is aligned properly prior to installing bellhousing bolts. This value is an estimate. Check service manual for any deviations.

Torque Converter

1

Torque Converter to Flexplate Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure all torque converter bolts are engaged and that the converter is seated prior to final tightening. This value is an estimate. Check service manual for any deviations.

Output Shaft Yoke

1

Transmission Output Shaft Yoke/Flange Nut

M22 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Use new nut if specified. This value is an estimate. Check service manual for any deviations.

Solenoid Pack

1

Transmission Solenoid Pack Mounting Bolts

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Do not over-tighten.

Fluid Line Fittings

1

Transmission Fluid Line Fitting Bolts

M10 x 1.25
Torque Specification
10.83 ft-lbs (14.7 N·m)
Important Notes
Use new sealing washers. Ensure proper alignment of lines before tightening.

Transmission Case

1

Transmission Case/Housing Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even pressure and a proper seal. Apply proper gasket or sealant per service manual if case is split. This value is an estimate, check the service manual for deviations.

5.7l Engine

Torque specifications for 5.7L Engine

Cylinder Head

1

Cylinder Head Bolts

M11 x 1.5
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 90° 3. 90°
Important Notes
Cylinder head bolts require a multi-step torque sequence involving an initial torque value followed by two angle torque steps. Always follow the correct tightening pattern in the service manual. This sequence is critical for proper head gasket sealing.
2

Rocker Arm Shaft Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
These bolts secure the rocker arm shafts. Ensure correct torque to prevent binding or excessive clearance.
3

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
1. 7 ft-lbs (9 N·m) 2. 50°
Important Notes
Camshaft bearing caps must be torqued in sequence to avoid binding the camshaft. Torque in steps as shown, also lubricate threads with clean engine oil. Estimated value, check service manual

Bottom End

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
1. 40 ft-lbs (54 N·m) 2. 80 ft-lbs (108 N·m) 3. 90°
Important Notes
Main bearing bolts should be torqued in sequence to ensure even pressure distribution, lubricate threads with clean engine oil.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure connecting rod cap is properly aligned before torquing. Lube threads with clean engine oil.
3

Flywheel/Flexplate Bolts

M11 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Ensure flywheel or flexplate is properly seated against the crankshaft flange.
4

Oil Pan Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent leaks. Torque is low to prevent damage to the oil pan flange. 105 inch-lbs converted to ft-lbs.
5

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use a new crush washer to ensure a proper seal.
6

Oil Filter Housing Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent leaks. Torque is low to prevent damage to the oil filter housing. 105 inch-lbs converted to ft-lbs.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure proper tensioner function after torquing.
2

Camshaft Sprocket Bolts

M10 x 1.25
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
Ensure proper camshaft and crankshaft timing before tightening. These bolts should be tightened in the final step of timing installation
3

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
This bolt is critical for proper accessory drive and vibration damping. Ensure the balancer is fully seated on the crankshaft snout before tightening.
4

Timing Cover Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent leaks. Torque is low to prevent damage to the timing cover. 105 inch-lbs converted to ft-lbs. Estimated value, check service manual.

Intake System

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent vacuum leaks. 105 inch-lbs converted to ft-lbs.
2

Intake Manifold Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Torque these bolts evenly in a criss-cross pattern to prevent leaks. 105 inch-lbs converted to ft-lbs.
3

Intake Manifold Runner Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Torque these bolts evenly in a criss-cross pattern to prevent leaks if applicable. 105 inch-lbs converted to ft-lbs. Estimated value, check service manual.

Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Use new gasket for proper sealing, and torque evenly to prevent leaks. May need retorquing after heat cycles.

Valve Train

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent leaks. 105 inch-lbs converted to ft-lbs.

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to ensure proper grounding. 105 inch-lbs converted to ft-lbs.

Fuel System

1

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent fuel leaks. 105 inch-lbs converted to ft-lbs.
2

Fuel Injector Rail Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent fuel leaks. 105 inch-lbs converted to ft-lbs.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent coolant leaks. 105 inch-lbs converted to ft-lbs.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly. 105 inch-lbs converted to ft-lbs.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These bolts should be torqued evenly to prevent coolant leaks. 105 inch-lbs converted to ft-lbs.

Sensors

1

Knock Sensor Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These bolts must be torqued to specification to ensure proper sensor operation. Estimated value, check service manual
2

Coolant Temperature Sensor (CTS)

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These sensors read coolant temperature and should be torqued to spec to prevent issues with readings and leaking. Estimated value, check service manual
3

Crankshaft Position Sensor (CKP)

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
These sensors read the position of the crankshaft. Proper torque is essential to ensure reliable data. 105 inch-lbs converted to ft-lbs. Estimated value, check service manual

545rfe Transmission

Torque specifications for 545rfe Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Apply even torque to each bolt. Check torque after initial drive cycle.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Torque in a criss-cross pattern to ensure even sealing. Inch-lbs converted to ft-lbs.

Transmission Drain Fill Plugs

1

Transmission Drain Plug

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sealing washer is in place before tightening. Do not over tighten, can damage threads.
2

Transmission Fill Plug

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sealing washer is in place before tightening. Do not over tighten, can damage threads.

Transmission Bellhousing

1

Transmission Bellhousing Bolts to Engine Block

M12 x 1.75
Torque Specification
38 ft-lbs (51 N·m)
Important Notes
Torque values are an estimate, may vary based on specific bolt material. Use even torque.

Transmission Cooler Lines

1

Transmission Cooler Line Fittings

7/16-20 (Flare Fitting)
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure proper alignment and avoid cross-threading. Torque is an estimate and material dependent. Flare fittings require snug fit.

Transmission Case Bolts

1

Transmission Case/Body Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque in a criss-cross pattern to ensure even sealing. Values are an estimate, but within proper range.

Output Shaft Speed Sensor

1

Output Shaft Speed Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Torque value is estimated to be within the proper range. Do not overtighten.

Body

Torque specifications for Body

Fuel System

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure straps are properly positioned before tightening. Use new bolts if available.
2

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment of the filler neck before tightening.

Body Panels

1

Fender Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even clamping pressure. Estimated value.
2

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper hood alignment before fully tightening.
3

Hood Latch Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure latch operates smoothly after tightening. Estimated value.
4

Bumper Mounting Bolts

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper bumper alignment before tightening. Estimated value.
5

Tail Light Assembly Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten, as the plastic housing could crack. Estimated value.
6

Grill Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper grill alignment before tightening. Estimated value.

Door System

1

Door Hinge Bolts (Body Side)

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper door alignment before tightening. Estimated value.
2

Door Latch/Striker Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Adjust striker for proper door closure. Estimated value.

Interior Components

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure seats are properly aligned before tightening. This torque value is critical for occupant safety. Estimated value.
2

Dashboard Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten. Estimated value.
3

Interior Trim Panel Bolts/Screws

M5 x 0.8
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Do not overtighten, as plastic parts may crack. Estimated value.

Wheels

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Tighten lug nuts in a star pattern. Incorrect torque can lead to wheel damage and loss. This is a critical safety item.

Brakes

Torque specifications for Brakes

Caliper Mounting

1

Caliper Mounting Bolts

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
These bolts secure the caliper directly to the mounting bracket. Ensure threads are clean and dry before installation. Torque all bolts evenly to the specified value.
2

Caliper Mounting Bracket Bolts

M14 x 2.0
Torque Specification
120 ft-lbs (162 N·m)
Important Notes
These bolts attach the caliper mounting bracket to the steering knuckle or axle carrier. Proper torque is critical for brake system stability. Ensure bolts are tightened evenly.

Rotor Drum

1

Rotor/Drum Retaining Bolts/Screws

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
These small bolts or screws hold the rotor or drum to the hub. Do not overtighten to avoid damaging the threads or rotor. If using screws rather than bolts, use an impact driver to loosen, but torque by hand only.

Hydraulic System

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
This bolt connects the brake hose to the caliper. Use new copper washers each time. An estimated value, refer to specific vehicle manual for exact spec.
2

Brake Line Fittings

M10 x 1.0
Torque Specification
12 ft-lbs (17 N·m)
Important Notes
These connect hard brake lines. Over-tightening can damage the line. Estimated value, refer to specific vehicle manual for exact spec.
3

Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
These bolts mount the master cylinder. Tighten evenly to prevent leaks. Estimated value, refer to specific vehicle manual for exact spec.

Booster And Sensors

1

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
These bolts secure the brake booster to the firewall. Tighten evenly. Estimated value, refer to specific vehicle manual for exact spec.
2

Wheel Speed Sensor Mounting Bolt

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
These bolts secure the wheel speed sensors. Do not over tighten, as this can damage the sensor. Estimated value, refer to specific vehicle manual for exact spec.

Drivetrain

Torque specifications for Drivetrain

Flywheel Clutch

1

Flywheel Bolts

M10 x 1.25
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Apply thread locker to bolts. Ensure proper flywheel alignment before tightening.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure transmission is properly aligned before tightening. Use new bolts if specified in the manual.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Use a new gasket or sealant as specified. Tighten bolts in a criss-cross pattern.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use new crush washers or O-rings. Do not overtighten.
4

Transmission Output Shaft Nut

M24 x 1.5
Torque Specification
125 ft-lbs (170 N·m)
Important Notes
Estimated value. Check specific manual. Use new nut if specified.

Driveshaft

1

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Apply thread locker. Tighten bolts evenly.
2

Driveshaft Center Support Bearing Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Check specific manual.

Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Use new bolts if specified. Ensure proper alignment of the axle flange.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
185 ft-lbs (251 N·m)
Important Notes
Use a new nut. Tighten with the vehicle on the ground after installing the wheel. May need to be staked in place.

Differential

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new crush washers or O-rings.
2

Differential Ring Gear Bolt

M12 x 1.75
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Estimated value. Check specific manual. Apply thread locker. Tighten in a star pattern.
3

Differential Pinion Nut

M27 x 2.0
Torque Specification
175 ft-lbs (237 N·m)
Important Notes
Estimated value. Check specific manual. Torque may need to be measured by rotational resistance or preload.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new crush washers or O-rings.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the coil is seated properly before tightening. Verify the coil ground path is clean and free of corrosion.

Starting System

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure the starter is properly aligned before tightening. Verify the ground path between the starter and engine block/transmission housing is clean and free of corrosion.

Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening. Verify the ground path between the alternator and its bracket is clean and free of corrosion.

Battery System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
5.83 ft-lbs (8 N·m)
Important Notes
Do not overtighten. Ensure terminals and connectors are clean and free of corrosion before assembly.

Powertrain Control

1

Powertrain Control Module (PCM) Mounting Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Ensure the PCM is making full contact with its mounting surface, and that any ground connections are secure and clean. These are often in a hard to reach location, so be careful not to cross thread them.
2

Engine Control Sensor Ground Bolt(s)

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the ground terminal is clean and properly seated. Verify the ground path is clean of corrosion. Ground points are located at various sensor locations across the vehicle.

Power Distribution

1

Fuse Box/Power Distribution Center Mounting Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the box is properly seated and any grounding tabs are making good contact with the mounting surface. Be careful not to overtighten self tapping screws.

Body Control

1

Body Control Module (BCM) Mounting Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Ensure the BCM is properly positioned and flush against its mounting surface. Note the location of any grounding points on the BCM and ensure those are also clean and fully seated.

Lighting

1

Headlight Assembly Mounting Bolts

M5 x 0.8
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Do not overtighten. Ensure the headlight assembly is properly aligned and seated before tightening. This specification may also apply to self tapping screws for plastic housing applications.
2

Taillight Assembly Mounting Bolts

M5 x 0.8
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Do not overtighten. Ensure the taillight assembly is properly aligned and seated before tightening. This specification may also apply to self tapping screws for plastic housing applications.

Abs System

1

ABS Control Module Mounting Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the ABS control module is securely mounted and grounded. Verify the mounting surface is clean and free of obstructions before mounting. Note any grounding straps connected to the module.

Grounding

1

Ground Stud Bolts/Fasteners to Body/Chassis

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the terminal or ring lug is clean and has good contact with the ground surface. Verify the ground point is free of corrosion. This specification is common for various grounding points across the vehicle.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of the manifold before tightening. Tighten all bolts evenly in a cross pattern.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Verify the gasket is correctly positioned. Tighten all bolts evenly.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the gasket is correctly aligned. Tighten all bolts evenly.

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Tighten bolts evenly to avoid damaging the valve or gasket. Be careful not to over-tighten.

Oxygen Sensors

1

Oxygen (O2) Sensor Mounting Bolt/Thread

M18 x 1.5
Torque Specification
33 ft-lbs (44 N·m)
Important Notes
Use a proper oxygen sensor socket to prevent damage. Do not over-tighten. This is an estimated value, check manufacturer's specs.

Intake System

1

Mass Air Flow (MAF) Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Be careful not to over-tighten, as this could damage the sensor. This is an estimated value, check manufacturer's specs.

Evap System

1

EVAP Canister Mounting Bolts/Straps

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure the canister is properly seated in its mounting location. Tighten evenly to avoid stress on mounting points. This is an estimated value, check manufacturer's specs.
2

EVAP Purge Valve Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Be careful not to over-tighten. This is an estimated value, check manufacturer's specs.

Secondary Air Injection

1

Secondary Air Injection (AIR) Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the pump is correctly positioned. Tighten all bolts evenly. This is an estimated value, check manufacturer's specs.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even pressure. Apply anti-seize to bolt threads.

Front Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Header Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten bolts evenly to ensure a proper seal. Apply anti-seize to bolt threads.
2

Exhaust Pipe Flange Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten bolts evenly to ensure a proper seal. Apply anti-seize to bolt threads.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper gasket alignment before tightening. Apply anti-seize to bolt threads.

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the muffler is correctly aligned before tightening bolts. Apply anti-seize to bolt threads.

Oxygen Sensors

1

Oxygen Sensor Torque

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Do not over-tighten the sensor as this may damage the sensor or threads. Apply anti-seize to the threads to prevent galling and ensure accurate torque readings.

Exhaust Hangers

1

Exhaust Hanger Bolts/Nuts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the hangers are aligned properly to support the exhaust system. Apply anti-seize to bolt threads.

Fuel

Torque specifications for Fuel

Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the fuel rail is seated properly before tightening the bolts. Use a criss-cross pattern for even clamping pressure.
2

Fuel Injector Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the injector O-rings are properly lubricated and seated before installation to prevent leaks.
3

Fuel Pressure Regulator Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the regulator is properly seated and use a criss-cross pattern for even clamping pressure. Estimated value.

Fuel Delivery

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the fuel pump is seated properly in the tank and use a criss-cross pattern for even clamping pressure.
2

Fuel Filter Bolt/Nut

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use new washers when installing filter.
3

Fuel Line Fitting - Banjo Bolt

M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use new crush washers and ensure proper alignment of the fuel line and fitting. Estimated value.
4

Fuel Line Fitting - Threaded Connector

1/2-20 UNF (estimated)
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use new O-rings or seals, and ensure proper alignment. Estimated value. May vary, verify based on fitting size.

Fuel Tank

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the fuel tank is properly supported before tightening the strap bolts.
2

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the filler neck is aligned properly to the tank and vehicle body.
3

Fuel Tank Sending Unit Bolts/Screws

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Use new gaskets or seals for the sending unit, and tighten evenly. Estimated value.

Hvac

Torque specifications for Hvac

Ac Compressor

1

Compressor Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure bolts are tightened evenly. Use a criss-cross pattern for even clamping pressure.

Ac Lines

1

A/C Line Fitting

Varies, typically M12 x 1.75
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure O-rings are in good condition and lubricated with refrigerant oil before assembly to ensure proper sealing. Do not overtighten these as this can cause leaks.

Ac Condenser

1

Condenser Mounting Bolts (Small)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
These are often smaller bolts. Use a torque wrench calibrated for these lower values. Value is an estimate based on typical small bolt sizes.
2

Condenser Mounting Bolts/Nuts (Large)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These are often larger bolts or nuts. Ensure they are torqued properly.

Ac Evaporator

1

Evaporator Housing Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Usually small bolts or screws. Over-tightening can damage the plastic housing. Value is an estimate based on typical small bolt sizes.

Blower Motor

1

Blower Motor Mounting Bolts/Screws

M5 x 0.8
Torque Specification
4 ft-lbs (6 N·m)
Important Notes
These are often smaller bolts or screws. Do not overtighten, as this can cause damage. Value is an estimate based on typical blower motor screw sizes.

Hvac Control Module

1

Control Module Mounting Screws

M5 x 0.8
Torque Specification
4 ft-lbs (6 N·m)
Important Notes
These are often small screws and often install into plastic. Do not overtighten, as this can cause damage. Value is an estimate based on typical control module screw sizes.

Blend Door Actuator

1

Blend Door Actuator Mounting Screws

M4 x 0.7 Self-Tapping
Torque Specification
3 ft-lbs (5 N·m)
Important Notes
Usually small self-tapping screws into plastic. Overtightening can strip the plastic. Value is an estimate based on typical blend door actuator screw sizes.

Mode Door Actuator

1

Mode Door Actuator Mounting Screws

M4 x 0.7 Self-Tapping
Torque Specification
3 ft-lbs (5 N·m)
Important Notes
Usually small self-tapping screws into plastic. Overtightening can strip the plastic. Value is an estimate based on typical mode door actuator screw sizes.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut Mounting Bolts

M12 x 1.75
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
These bolts secure the strut assembly to the vehicle's frame or steering knuckle. Ensure proper alignment before tightening.
2

Upper Control Arm Mounting Bolts

M12 x 1.75
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
These bolts attach the upper control arm to the vehicle's frame. Ensure proper alignment of the control arm before tightening. Estimated value.
3

Lower Control Arm Mounting Bolts

M14 x 2.0
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
These bolts attach the lower control arm to the frame and/or steering knuckle. Ensure proper alignment before tightening.
4

Ball Joint Nut

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
This nut secures the ball joint to the control arm or steering knuckle. Do not overtighten. Estimated value.
5

Steering Knuckle Mounting Bolts

M12 x 1.75
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
These bolts secure the steering knuckle to the strut and control arm. Ensure proper alignment before tightening. Estimated Value.
6

Wheel Hub/Bearing Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (101 N·m)
Important Notes
These bolts attach the wheel hub/bearing assembly to the steering knuckle. Ensure correct seating before tightening. Estimated value.

Steering System

1

Tie Rod End Nut

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
This nut secures the tie rod end to the steering knuckle. Do not overtighten. Estimated value.
2

Steering Gear/Rack Mounting Bolts

M14 x 2.0
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
These bolts secure the steering rack to the vehicle's frame. Ensure the rack is properly aligned before tightening.

Sway Bar System

1

Sway Bar Link Nut

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
These nuts secure the sway bar links to the sway bar and strut/control arm. Do not overtighten. Estimated value.
2

Sway Bar Bracket Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
These bolts secure the sway bar to the frame or subframe. Tighten evenly to prevent binding. Estimated value.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the torque specifications for the wheel lug nuts on a 2007-2009 Chrysler aspen?

100 ft-lbs (135 Nm)

Q2

How do I properly torque the spark plugs on my 2008 Chrysler aspen?

18 ft-lbs (24 Nm) for 4.7L and 5.7L engines

Q3

What IS the recommended tightening sequence for the cylinder head bolts on a 2007 Chrysler aspen with a 4.7L engine?

Follow the manufacturer's specified sequence in the service manual

Q4

What type of torque wrench IS best for automotive use?

A click-type or digital torque wrench that meets automotive industry standards

Q5

Can I use a torque multiplier to increase the torque output of my torque wrench?

Yes, but only under the guidance of a qualified mechanic and with extreme caution

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the Aspen.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures

Engine Tune-Up and Valve Adjustment

Step-by-step guide for checking and adjusting valve clearances on the Aspen's V8 engine.

  • Remove the valve covers, inspect the valve train, and loosen the rocker arm locknuts.
  • Use a feeler gauge to measure valve clearance and adjust as necessary.
  • Tighten the locknuts to 20 Nm (15 ft-lb).
  • Reinstall the valve covers and torque the bolts to 10 Nm (7 ft-lb).
View full procedure

Spark Plug Replacement

Instructions for replacing the spark plugs on the Aspen's V8 engine.

View full procedure

Brake Pad Replacement

Guide for replacing the brake pads and rotors on the Aspen's front and rear axles.

  • Remove the wheels and brake calipers.
  • Remove the old brake pads and inspect the rotors for wear.
  • If necessary, replace the rotors and install new brake pads.
  • Torque the caliper bolts to 120 Nm (89 ft-lb) and the wheel lug nuts to 140 Nm (103 ft-lb).
View full procedure
Technical Service Bulletins

Rear Axle Differential Seal Leak

2008-05-15

Addresses a potential leak from the rear axle differential seal on the Aspen.

2007-2009 Aspen

Resolution: Inspect the differential seal for leaks and replace if necessary. Torque the differential cover bolts to 35 Nm (26 ft-lb).

Loose Steering Gear Mounting Bolts

2007-10-01

Warns about potential loose steering gear mounting bolts on the Aspen.

2007 Aspen

Resolution: Inspect the steering gear mounting bolts and tighten to 90 Nm (66 ft-lb).

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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