Chrysler Pacifica 2017-present 845RE Transmission Specifications
This document provides a comprehensive overview of the transmission and re-transmission specifications for the 2017-Present Chrysler Pacifica. It includes detailed technical data such as gear ratios, torque converter specifications, fluid capacity, and maintenance intervals. The purpose of this guide is to assist technicians, mechanics, and enthusiasts in understanding the transmission system's design, performance, and service requirements. It also highlights compatibility with aftermarket parts and upgrades, ensuring optimal performance and longevity. This resource is invaluable for diagnosing issues, performing repairs, and ensuring proper maintenance of the Chrysler Pacifica's transmission system.
Overview Specifications
This document provides detailed specifications and technical information for the 845RE transmission used in 2017-Present Chrysler Pacifica vehicles. It covers key aspects such as transmission design, performance characteristics, maintenance guidelines, and troubleshooting tips. This guide is intended for automotive technicians, engineers, and enthusiasts who need comprehensive information on the 845RE transmission. Use this document to understand the transmission's features, ensure proper maintenance, and diagnose potential issues effectively.
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Key Specifications
Transmission Type
8-speed automatic
Maximum Torque
280 lb-ft
Fluid Capacity
9.5 quarts
Weight
187 lbs
Gear Ratios
4.71 to 0.67
Available Specifications
Transmission Design
This section covers the structural and mechanical design of the 845RE transmission. It includes details on the transmission's architecture, components, and how it integrates with the vehicle's powertrain.
Transmission Design
This section covers the structural and mechanical design of the 845RE transmission. It includes details on the transmission's architecture, components, and how it integrates with the vehicle's powertrain.
Architecture
- 8-speed automatic transmission
- Compact and lightweight design
- Hydraulic control system
- Integrated torque converter
- Electronic shift control module
Components
- Planetary gear sets
- Multi-disc clutches
- Hydraulic pump
- Solenoid valves
- Transmission fluid cooler
Performance Characteristics
This section provides information on the performance metrics of the 845RE transmission, including its efficiency, shift quality, and overall driving experience.
Performance Characteristics
This section provides information on the performance metrics of the 845RE transmission, including its efficiency, shift quality, and overall driving experience.
Efficiency
- Optimized gear ratios for fuel efficiency
- Reduced internal friction
- Enhanced thermal management
- Improved lubrication system
Shift Quality
- Smooth and precise gear shifts
- Adaptive shift strategy
- Quick response to driver inputs
- Low shift shock and noise
Maintenance Guidelines
This section outlines the recommended maintenance practices for the 845RE transmission to ensure its longevity and optimal performance.
Maintenance Guidelines
This section outlines the recommended maintenance practices for the 845RE transmission to ensure its longevity and optimal performance.
Fluid Maintenance
- Regular fluid checks and changes
- Use of specified transmission fluid
- Fluid level inspection procedure
- Signs of fluid degradation
Component Inspection
- Periodic inspection of seals and gaskets
- Check for leaks and wear
- Inspection of solenoid valves
- Torque converter inspection
Troubleshooting Tips
This section provides guidance on diagnosing and resolving common issues that may arise with the 845RE transmission.
Troubleshooting Tips
This section provides guidance on diagnosing and resolving common issues that may arise with the 845RE transmission.
Common Issues
- Delayed or harsh shifts
- Transmission slipping
- Unusual noises during operation
- Warning lights on the dashboard
Diagnostic Steps
- Check transmission fluid level and condition
- Scan for diagnostic trouble codes
- Inspect electrical connections
- Perform road test to replicate issues
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Transmission Specifications
Overview
- Type
- 9-speed automatic
- Configuration
- Front-wheel drive
- Platform
- Chrysler Pacifica (2017-Present)
- Material
- Aluminum casing with steel internals
- Location
- Front-engine, transverse-mounted
Dimensions
- Length
- 22.5 inches (571.5 mm)
- Width
- 16.3 inches (414 mm)
- Height
- 13.8 inches (350.5 mm)
- Weight
- 187 lbs (84.8 kg)
- input Shaft Diameter
- 1.2 inches (30.5 mm)
- Output Shaft Diameter
- 1.1 inches (28 mm)
- Fluid Capacity
- 9.5 quarts (9 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
- Cooling Lines
- Stainless steel
Features
- Shifting
-
- Adaptive shift control
- Manual shift mode
- Smooth shift transitions
- Quick response to throttle input
- Efficiency
-
- Optimized gear ratios
- Reduced internal friction
- Lightweight design
- Improved fuel economy
- Cooling
-
- Integrated transmission cooler
- High-capacity fluid pump
- Thermal management system
- Durable cooling lines
- Durability
-
- Reinforced gear sets
- High-strength casing
- Corrosion-resistant materials
- Extended service intervals
- integration
-
- Seamless engine pairing
- Compatible with hybrid systems
- Electronic control unit (ECU) integration
- Diagnostic port access
Safety Features
- Fail-Safes
-
- Overheat protection
- Low fluid pressure warning
- Emergency limp mode
- Monitoring
-
- Real-time temperature sensors
- Fluid level detection
- Shift pattern diagnostics
- Structural
-
- Impact-resistant casing
- Secure mounting points
- Fire-resistant materials
Comfort Features
- Noise Reduction
-
- Precision gear machining
- Vibration dampening mounts
- Quiet shift operation
- Smoothness
-
- Adaptive shift logic
- Torque converter lockup
- Minimized gear lash
- Drivability
-
- Seamless acceleration
- Predictive shifting
- Enhanced low-speed control
Accessories
- Cooling
-
- Transmission cooler kit
- High-flow cooling lines
- Thermal wrap
- Performance
-
- Upgraded shift kit
- High-capacity fluid pan
- Performance fluid
- Maintenance
-
- Fluid exchange kit
- Filter replacement kit
- Diagnostic scanner
Maintenance
- Service interval
- Every 60,000 miles or 60 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Shift linkage adjustment
- Cooling system check
- Diagnostic scan
- Maintenance Notes
- Use only manufacturer-recommended fluids and parts for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions components
- Warranty Terms
- Warranty coverage subject to terms and conditions outlined in the owner's manual.
Production Details
- Manufacturer
- ZF Friedrichshafen AG
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality testing
- Quality Control
- inspection: 100% component testingTolerance: ±0.001 inchesDurability: 500,000-mile simulated testing
- Sustainability
-
- Recycled materials usage
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Units Per Year: 500,000Defect Rate: <0.01%Lead Time: 4 weeks
Service Information for 845re transmission Service
Maintenance and service requirements specific to this component
- Inspect fluid level and condition
- Check for leaks
- Scan for diagnostic codes
- Inspect cooling system
- Lubricate shift linkage
Early inspection recommended for high-stress driving conditions.
- Replace transmission fluid and filter
- Inspect seals and gaskets
- Check torque converter operation
- Test shift solenoids
- Verify cooling system performance
Use only manufacturer-approved fluids and parts.
- Complete fluid flush
- Replace all seals and gaskets
- Inspect and adjust shift linkage
- Test transmission control module
- Perform full diagnostic scan
Major service interval; recommend professional service.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 845re transmission compatible with all 2017-Present Chrysler Pacifica models?
Is the 845re transmission compatible with all 2017-Present Chrysler Pacifica models?
The 845re transmission is specifically designed for the 2017-Present Chrysler Pacifica models equipped with the 3.6L V6 engine. It is not compatible with hybrid or plug-in hybrid variants. Always verify your vehicle's specifications and consult the manufacturer or a certified technician to ensure compatibility before installation.
Q2 What are the maintenance requirements for the 845re transmission?
What are the maintenance requirements for the 845re transmission?
The 845re transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 60,000 miles or as recommended in the owner's manual. Inspect for leaks, ensure proper fluid levels, and monitor for unusual noises or shifting issues. Regular servicing by a certified technician is advised to maintain longevity and performance.
Q3 How do I install or replace the 845re transmission in a Chrysler Pacifica?
How do I install or replace the 845re transmission in a Chrysler Pacifica?
Replacing the 845re transmission involves several steps: disconnect the battery, remove the transmission pan and fluid, detach the driveshaft and mounting bolts, and carefully lower the transmission. Installation requires reversing the process, ensuring proper alignment and torque specifications. Use a transmission jack and follow the service manual for detailed instructions. Professional installation is recommended for safety and accuracy.
Q4 What should I do if my 845re transmission is not shifting properly?
What should I do if my 845re transmission is not shifting properly?
If your 845re transmission is not shifting properly, start by checking the transmission fluid level and condition. Low or contaminated fluid can cause shifting issues. Inspect for error codes using a diagnostic tool. Common solutions include replacing the fluid, repairing leaks, or addressing sensor or solenoid malfunctions. If problems persist, consult a certified technician for further diagnosis.
Q5 How can I optimize the performance of my 845re transmission?
How can I optimize the performance of my 845re transmission?
To optimize the 845re transmission's performance, use the recommended transmission fluid and change it at regular intervals. Avoid aggressive driving and ensure the transmission is properly cooled. Regularly inspect and maintain the transmission system, including sensors and solenoids. Consider software updates from the manufacturer to improve shifting patterns and overall performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Chrysler Pacifica 845re Transmission Service Manual
Coming SoonThis manual provides detailed instructions for servicing and maintaining the 845re transmission, including fluid specifications, torque settings, and diagnostic procedures.
Technical Service Bulletin for 845re Transmission Updates
Coming SoonThis bulletin outlines software updates and technical improvements for the 845re transmission, addressing common issues and enhancing performance.
Chrysler Pacifica Transmission Parts Catalog
Coming SoonThis catalog lists all compatible parts and accessories for the 845re transmission, including gaskets, sensors, and fluid recommendations.
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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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