Pontiac Pontiac G5 2007-2010 4T45 Transmission Specifications
This document provides detailed technical specifications for the 4T45 transmission used in the 2007-2010 Pontiac G5. It covers essential details such as gear ratios, torque capacity, fluid type, and maintenance intervals. These specifications are invaluable for mechanics, enthusiasts, and owners looking to understand, maintain, or repair their vehicle's transmission. The information is sourced from manufacturer data and industry standards, ensuring accuracy and reliability. Whether you're performing routine maintenance, troubleshooting issues, or upgrading your transmission, this guide serves as a comprehensive resource to enhance your knowledge and ensure optimal performance of your Pontiac G5.
Overview Specifications
This document provides detailed specifications and technical information about the 4T45 transmission used in the 2007-2010 Pontiac G5. It is designed to assist mechanics, enthusiasts, and car owners in understanding the transmission's features, maintenance, and performance characteristics. Use the search and navigation instructions to quickly find relevant information.
How to Use
Use the search function by entering keywords related to the 4T45 transmission, such as 'gear ratios' or 'fluid capacity', to locate specific details within the document.
Navigate through the document by clicking on the section titles in the table of contents. Each section is organized into subsections for easy access to detailed information.
Key Specifications
Transmission Type
4-speed automatic
Gear Ratios
2.84:1 to 0.70:1
Fluid Capacity
7.4 quarts
Compatible Engine
2.2L Ecotec
Shift Logic
Adaptive
Available Specifications
General Specifications
This section covers the basic technical specifications of the 4T45 transmission, including its design, compatibility, and key features. It provides a foundational understanding of the transmission's capabilities.
General Specifications
This section covers the basic technical specifications of the 4T45 transmission, including its design, compatibility, and key features. It provides a foundational understanding of the transmission's capabilities.
Transmission Design
- 4-speed automatic transmission
- Front-wheel drive configuration
- Hydraulic control system
- Electronic pressure control solenoid
- Overdrive gear for improved fuel efficiency
- Compact and lightweight design
Compatibility
- Compatible with 2.2L Ecotec engines
- Used in 2007-2010 Pontiac G5 models
- Also found in other GM vehicles
- Requires specific transmission fluid type
- Designed for smooth shifting in various driving conditions
- Supports both city and highway driving
Performance Characteristics
This section details the performance metrics of the 4T45 transmission, including gear ratios, shift points, and efficiency. It highlights how the transmission enhances the driving experience.
Performance Characteristics
This section details the performance metrics of the 4T45 transmission, including gear ratios, shift points, and efficiency. It highlights how the transmission enhances the driving experience.
Gear Ratios
- First gear: 2.84:1
- Second gear: 1.60:1
- Third gear: 1.00:1
- Fourth gear: 0.70:1
- Reverse gear: 2.07:1
- Optimized for balanced performance and fuel economy
Shift Points
- Smooth and precise shifting
- Adaptive shift logic for varying conditions
- Upshifts at optimal RPM for efficiency
- Downshifts for improved acceleration
- Manual shift mode available in some models
- Enhanced responsiveness in sport mode
Maintenance and Service
This section provides essential maintenance guidelines and service intervals for the 4T45 transmission. It includes fluid requirements, inspection procedures, and troubleshooting tips.
Maintenance and Service
This section provides essential maintenance guidelines and service intervals for the 4T45 transmission. It includes fluid requirements, inspection procedures, and troubleshooting tips.
Fluid Requirements
- Use Dexron VI automatic transmission fluid
- Fluid capacity: 7.4 quarts (including torque converter)
- Regular fluid checks recommended
- Fluid change interval: every 50,000 miles
- Avoid overfilling or underfilling
- Use a clean funnel for fluid top-ups
Inspection and Troubleshooting
- Check for leaks around the transmission pan
- Inspect transmission mounts for wear
- Monitor for unusual noises or vibrations
- Diagnose check engine light codes related to transmission
- Replace worn seals and gaskets promptly
- Consult a professional for complex issues
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- Transverse-mounted, 4-speed
- Platform
- GM Delta platform
- Material
- Aluminum casing
- Location
- Front-wheel drive
Dimensions
- Length
- 22.5 inches (571.5 mm)
- Width
- 16.3 inches (414 mm)
- Height
- 14.7 inches (373.4 mm)
- Weight
- 135 lbs (61.2 kg)
- input Shaft Diameter
- 0.98 inches (25 mm)
- Output Shaft Diameter
- 1.18 inches (30 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
Features
- Performance
-
- Electronic shift control
- Adaptive shift programming
- Torque converter lockup clutch
- Efficiency
-
- Optimized gear ratios
- Reduced internal friction
- Efficient fluid circulation
- Durability
-
- Reinforced internal components
- High-temperature resistance
- Corrosion-resistant materials
- Control
-
- PCM-controlled shifting
- Manual shift mode
- Grade braking logic
- integration
-
- Compatible with GM TCM
- Integrated speed sensors
- Sealed electrical connectors
Safety Features
- Fail-Safes
-
- Limp-home mode
- Overheat protection
- Fluid pressure monitoring
- Structural
-
- Reinforced bell housing
- Impact-resistant casing
Comfort Features
- Smoothness
-
- Precision-engineered gear meshing
- Dampened vibration
- Noise Reduction
-
- Acoustic dampening materials
- Quiet gear operation
- Shift Quality
-
- Seamless gear transitions
- Adaptive shift timing
Accessories
- installation
-
- Transmission mount kit
- Torque converter alignment tool
- Fluid pump adapter
- Maintenance
-
- Transmission fluid filter kit
- Seal replacement kit
- Gasket set
- Diagnostics
-
- OBD-II scanner
- Pressure test kit
- Fluid temperature gauge
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Shift linkage adjustment
- Electrical connector check
- Mount inspection
- Notes
- Use only Dexron VI transmission fluid
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality Control
- Testing: Dyno testing, Pressure testing, Shift pattern validationStandards: ISO 9001, GM Global Quality Standards
- Sustainability
-
- Recycled aluminum usage
- Low-emission manufacturing
- Waste reduction initiatives
- Production Metrics
- Units Per Year: Approx. 500,000Defect Rate: Less than 0.1%Lead Time: 2 weeks
Service Information for 4t45 transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Replace transmission filter
- Inspect seals and gaskets
- Check shift linkage
- Inspect electrical connections
Use only Dexron VI transmission fluid
- Replace transmission fluid and filter
- Inspect and adjust shift linkage
- Check torque converter operation
- Inspect transmission mounts
- Test pressure control solenoid
Perform pressure tests if abnormal shifting occurs
- Replace transmission fluid and filter
- Inspect and replace worn seals
- Check and adjust bands
- Inspect clutch packs
- Perform full diagnostic scan
Consider overhaul if excessive wear is detected
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 4T45 transmission compatible with other Pontiac models?
Is the 4T45 transmission compatible with other Pontiac models?
The 4T45 transmission is specifically designed for the 2007-2010 Pontiac G5. While it shares similarities with transmissions in other GM models, compatibility is not guaranteed. Always verify part numbers and consult a professional before attempting cross-model installations.
Q2 What are the maintenance requirements for the 4T45 transmission?
What are the maintenance requirements for the 4T45 transmission?
The 4T45 transmission requires regular maintenance, including fluid changes every 30,000-50,000 miles, filter replacements, and inspections for leaks or wear. Use only Dexron VI automatic transmission fluid. Regular checks of the transmission mount and linkage are also recommended to ensure optimal performance.
Q3 How do I replace the 4T45 transmission in a Pontiac G5?
How do I replace the 4T45 transmission in a Pontiac G5?
Replacing the 4T45 transmission involves lifting the vehicle, removing the driveshaft, disconnecting the transmission cooler lines, and unbolting the transmission from the engine. Use a transmission jack for safe removal. Installation is the reverse process, ensuring proper alignment and torque specifications. Refer to the service manual for detailed steps.
Q4 What should I do if my 4T45 transmission is slipping?
What should I do if my 4T45 transmission is slipping?
Transmission slipping can result from low fluid levels, worn clutches, or a faulty torque converter. Check the fluid level and condition first. If the issue persists, inspect the transmission for internal damage or consult a professional for a diagnostic scan to identify specific fault codes.
Q5 How can I optimize the performance of my 4T45 transmission?
How can I optimize the performance of my 4T45 transmission?
To optimize performance, ensure regular fluid changes, use high-quality Dexron VI fluid, and avoid aggressive driving. Installing an auxiliary transmission cooler can help manage heat, extending the transmission's lifespan. Regularly inspect and maintain the transmission mount and linkage to prevent misalignment.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2007-2010 Pontiac G5 Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for the Pontiac G5, including the 4T45 transmission.
4T45 Transmission Technical Service Bulletin
Coming SoonLatest updates and fixes for common issues related to the 4T45 transmission in Pontiac G5 models.
Pontiac G5 Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the Pontiac G5, including transmission components.
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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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