Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1776 (AUTOMATIC TRANSMISSION - 5AT - INTRODUCTION (2 OF 2))
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Section 1776 (Automatic Transmission - 5AT - Introduction (2 Of 2))
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Section 1776 (Automatic Transmission - 5AT - Introduction (2 Of 2))
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Transmission Fluid Temperature Sensor Specifications
- Fastener Tightening Specifications
- Sealers, Adhesives, and Lubricants
- Transmission General Specifications
- Fluid Capacity Specifications
- Range Reference
- Shift Solenoid Valve State and Gear Ratio
- Shift Speed
- Transmission Range Switch Logic
- Line Pressure
- Component Resistance
- Transmission Fluid Pump Specifications
- Shim Size Specifications
- Transmission Clearance Specifications
- Schematic and Routing Diagrams
- Component Locator
- Automatic Transmission Electronic Component Views
- Disassembled Views
- Component Location
- Automatic Transmission Inline Harness Connector End View
- Automatic Transmission Internal Connector End Views
- Automatic Transmission Related Connector End Views
- 3rd Clutch Pressure Switch
- 4th Clutch Pressure Switch
- Clutch Pressure Control Solenoid Valve 1 Harness
- Clutch Pressure Control Solenoid Valve 2 Harness
- Input Speed Sensor (ISS) Harness
- Output Speed Sensor (OSS) Harness
- Park Neutral Position (PNP) Switch
- Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Valve Harness
- Transmission Fluid Temperature (TFT) Sensor Harness
- Diagnostic Information and Procedures
- Repair Instructions
- Repair Instructions - On Vehicle
- Transmission Fluid Replacement
- Torque Converter Clutch Solenoid Replacement
- 4th Clutch Pressure Switch Replacement
- 3rd Clutch Pressure Switch Replacement
- Transmission Fluid Temperature Sensor Replacement
- Input Speed Sensor Replacement
- Output Speed Sensor Replacement
- Automatic Transmission Range Selector Lever Replacement
- Transmission Oil Level Indicator Tube Replacement
- Park/Neutral Position Switch Replacement
- Transmission Output Shaft Seal Replacement
- Oil Cooler Line Replacement
- Fluid Cooler Pipe Seal Replacement
- A/B Clutch Pressure Control Solenoid Assembly Cover Replacement
- A/B Clutch Pressure Control Solenoid Assembly Replacement
- Mainshaft End Cover Replacement
- Output Shaft End Cover Replacement
- Transmission Wiring Harness Extension Replacement
- Transmission Mount Inspection
- Transmission Front Mount Replacement
- Transmission Front Mount Bracket Replacement
- Transmission Rear Mount Replacement
- Transmission Rear Mount Bracket Replacement
- Transmission Replacement
- Shift Control Replacement
- Transmission Control Bracket Replacement
- Shift Select Cable Replacement
- Repair Instructions - Off Vehicle
- Torque Converter Assembly Removal
- Holding Fixture Installation
- Transmission Fluid Draining
- Fluid Level Indicator Removal
- Clutch Pressure Control Solenoid Valve Removal
- Clutch Pressure Control Solenoid Manifold Removal
- Wiring Harness Removal
- Torque Converter Clutch Pressure Control Solenoid Removal
- Park/Neutral Position Switch Removal
- Input and Output Speed Sensor Removal
- Automatic Transmission Fluid Temperature Sensor Removal
- Transmission Case Cover Removal
- Main Shaft Retainer Nut Removal
- Transmission Case Removal
- Fluid Pipes Removal
- Park Pawl Assembly Removal
- 1st/2nd Clutch Shaft Lube Feed Pipe Removal
- Shaft and Clutches Removal
- Manual Shift Detent Lever and Park Pawl Actuator with Linkage Assembly Removal
- Front Differential Assembly and Transfer Case Input Gear Removal
- 3rd Clutch Shaft Assembly Removal
- Fluid Filter Removal
- Accumulator Valve Body Removal
- Servo Valve Body Removal
- Regulator Valve Body Removal
- Control Valve Body Assembly Removal
- Torque Converter Housing Disassemble
- Torque Converter Housing Assemble
- Reverse Idler Gear Replacement
- Transmission Fluid Filter Replacement
- 1st/Coast Clutch Apply Fluid Collar Replacement
- Main Shaft Rear Bearing Replacement
- 3rd Clutch Shaft Rear Bearing Replacement
- Park Pawl Actuator Bearing Replacement
- Manual Shift Shaft Bearing Replacement
- Manual Shift Shaft Seal Replacement
- 3rd and 4th Clutch Fluid Pressure Switch Replacement
- Transmission Fluid Cooler Pipe Fitting Replacement
- Main Shaft Disassemble
- 4th and 5th/Reverse Clutch Assembly Disassemble
- 4th and 5th/Reverse Clutch Inspection
- 4th and 5th/Reverse Clutch Assembly Assemble
- Clutch Backing Plate Clearance Measurement
- Main Shaft Assemble
- Output Shaft Disassemble
- Output Shaft Assemble
- 1st and 2nd Clutch Shaft Disassemble
- 1st/Coast Clutch Disassemble
- 1st/Coast Clutch Inspection
- 1st/Coast Clutch Assemble
- 2nd Clutch Disassemble
- 2nd Clutch Inspection
- 2nd Clutch Assemble
- 1st and 2nd Clutch Shaft Assemble
- 3rd Clutch Shaft Disassemble
- 3rd Clutch Disassemble
- 3rd Clutch Inspection
- 3rd Clutch Assemble
- 3rd Clutch Shaft Assemble
- General Valve Body Service Instructions
- Regulator Valve Body Assembly Overhaul
- Accumulator Valve Body Assembly Overhaul
- Servo Valve Body Overhaul
- Main Control Valve Body Assembly Overhaul
- Front Differential Assembly Overhaul
- Transmission Case Front Differential Bearing Race Replacement
- Transmission Case Axle Shaft Seal Replacement
- Transfer Case Input Gear Assembly Overhaul
- Transfer Case Input Gear Bearing Replacement
- Transfer Case Input Gear Installed Height Measurement
- Front Differential Rotational Torque Measurement
- 3rd Clutch Shaft Installed Height Measurement
- 1st and 2nd Clutch Shaft Installed Height Measurement
- Control Valve Body Assembly Installation
- Servo Valve Body Assembly Installation
- Accumulator Valve Body Assembly Installation
- Regulator Valve Body Assembly Installation
- Fluid Filter Installation
- 3rd Clutch Shaft Assembly Installation
- Transfer Case Input Gear Assembly Installation
- Front Differential Assembly Installation
- Manual Shift Detent Lever and Park Pawl Actuator with Linkage Assembly Installation
- Shafts and Clutch Assemblies Installation
- Parking Pawl Assembly Installation
- Fluid Pipes Installation
- Transmission Case Assembly Installation
- Transaxle Fluid Cooler Pipe Fitting Installation
- Transaxle Fluid Level Indicator Installation
- Wiring Harness Installation
- Clutch Pressure Control Solenoid Manifold Installation
- Clutch Pressure Control Solenoid Installation
- Torque Converter Clutch Lock Up Pressure Control Solenoid Installation
- Input and Output Speed Sensor Installation
- Automatic Transmission Fluid Temperature Sensor Installation
- Park/Neutral Position Switch Installation
- Drain Plug Installation
- Holding Fixture Removal
- Torque Converter Installation
- Repair Instructions - On Vehicle
- Description and Operation
- Automatic Transmission Hydraulic Diagrams
- Fluid Passages
- Transmission General Information
- Definitions and Abbreviations
- Transmission Identification Information
- Transmission System Description and Operation
- Electronic Component Description
- Special Tools and Equipment
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.