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.
External Pages
's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle. Different variant/trim Section 1 (Engine Mechanical - 6.5L V8 Diesel - VIN [Y,S,F]) Section 2 (Engine Controls - Tests W/Codes - 4.3L) Section 3 (Engine Controls - Tests W/Codes - 5.7L) Section 4 (Engine Controls - Tests W/Codes - 7.4L) Section 5 (Engine Controls - Removal, Installation & Overhaul - 4.3L) Section 6 (Engine Controls - Removal, Installation & Overhaul - 5.7L) Section 7 (Engine Controls - Removal, Installation & Overhaul - 7.4L) Section 8 (Engine Controls - Basic Diagnostic Procedures - 4.3L) Section 9 (Engine Controls - Basic Diagnostic Procedures - 5.7L) Section 10 (Engine Controls - Basic Diagnostic Procedures - 7.4L) Section 11 (Engine Controls - Tests W/O Codes - 6.5L Turbo Diesel) Section 12 (Engine Controls - Tests W/Codes - 6.5L Turbo Diesel) Section 13 (Engine Controls - System & Component Testing - 6.5L Turbo Diesel) Section 14 (Engine Controls - Tests W/O Codes - 4.3L) Section 15 (Engine Controls - Tests W/O Codes - 5.7L) Section 16 (Engine Controls - Tests W/O Codes - 7.4L) Section 17 (Engine Controls - System & Component Testing - 4.3L) Section 18 (Engine Controls - System & Component Testing - 5.7L) Section 19 (Engine Controls - System & Component Testing - 7.4L) Section 20 (Engine Controls - Service & Adjustment System Specifications - 6.5L Turbo Diesel) Section 21 (Engine Performance System Adjustments - 4.3L) Section 22 (Engine Performance System Adjustments - 6.5L Turbo Diesel) Section 23 (Engine Performance Wiring Diagrams - 7.4L) Section 24 (Engine Controls - Service & Adjustment System Specifications - 4.3L) Section 25 (Engine Controls - Service & Adjustment System Specifications - 5.7L) Section 26 (Engine Controls - Service & Adjustment System Specifications - 7.4L) Section 27 (Engine Controls - Basic Diagnostic Procedures - 6.5L Turbo Diesel) Section 28 (Engine Controls - Removal, Installation & Overhaul - 6.5L Turbo Diesel) Section 29 (EGR Function Testing - Diesel General Motors) Different car Section 1 (Computer Relearn Procedures) Section 2 (Engine Performance System Adjustments - G Series) Section 3 (Engine Controls - Service & Adjustment System Specifications - 4.3L) Section 4 (Engine Performance System Adjustments - 4.3L) Section 5 (Engine Controls - Service & Adjustment System Specifications - 5.0L) Section 6 (Engine Performance System Adjustments - 5.0L) Section 7 (Engine Controls - Service & Adjustment System Specifications - 5.7L (G Series)) Section 8 (Engine Performance System Adjustments - 5.7L (G Series)) Section 9 (Engine Controls - Service & Adjustment System Specifications - 6.5L Turbo Diesel (G Series)) Section 10 (Engine Performance System Adjustments - 6.5L Diesel (G Series)) Section 11 (Engine Controls - Service & Adjustment System Specifications - 7.4L (G Series)) Section 12 (Engine Performance System Adjustments - 7.4L (G Series)) Section 13 (Engine Controls - Tests W/O Codes - 4.3L) Section 14 (Engine Controls - Tests W/O Codes - 5.0L) Section 15 (Engine Controls - Tests W/O Codes - 5.7L (G Series)) Section 16 (Engine Controls - Tests W/O Codes - 7.4L (G Series)) Section 17 (Engine Controls - Basic Diagnostic Procedures - 4.3L) Section 18 (Engine Controls - Basic Diagnostic Procedures - 5.0L) Section 19 (Engine Controls - Basic Diagnostic Procedures - 5.7L (G Series)) Section 20 (Engine Controls - Basic Diagnostic Procedures - 6.5L Diesel (G Series)) Section 21 (Engine Controls - Basic Diagnostic Procedures - 7.4L (G Series)) Section 22 (Engine Controls - Tests W/Codes - 4.3L) Section 23 (Engine Controls - Tests W/Codes - 5.0L - G Vans) Section 24 (Engine Controls - Tests W/Codes - 5.7L (G Series)) Section 25 (Engine Controls - Tests W/Codes - 6.5L Diesel (G Series) ) Section 26 (Engine Controls - Tests W/Codes - 7.4L (G Series)) Section 27 (Engine Controls - Tests W/O Codes - 6.5L (G Series)) Section 28 (Engine Control System & Component Tests - 4.3L) Section 29 (Engine Controls - System & Component Testing - 5.0L) Section 30 (Engine Control System & Component Tests - 5.7L (G Series)) Section 31 (Engine Controls - System & Component Testing - 6.5L (G Series)) Section 32 (Engine Controls - System & Component Testing - 7.4L (G Series)) Section 33 (Supplemental Inflatable Restraint System) Section 34 (Computer Relearn Procedures) Section 35 (Anti-Lock Brake System - Diesel) Section 36 (Suspension - Front Coil Spring - G Series Van) Section 37 (Wheel Alignment Specifications & Adjustment Procedures - G Series Van) Section 38 (Front Suspension - Coil Spring (G Series)) Section 39 (Wheel Alignment Specifications & Adjustment Procedures (G Series)) Section 40 (Automatic Transmission Servicing (Except P Series)) Section 41 (Automatic Transmission Removal & Installation (Except P Series)) Section 42 (Computer Relearn Procedures) Section 43 (Anti-Lock Brake System - 4WAL) Section 44 (Disc Brakes & Drum Brakes) Section 45 (Supplemental Inflatable Restraint System Deactivation Procedures) Section 46 (Wheel Alignment Specifications & Adjustment Procedures) Section 47 (Supplemental Inflatable Restraint System) Section 48 (Axle Shafts - Rear) Section 49 (Steering Wheel And Steering Column) Section 50 (Disc Brakes & Drum Brakes) Section 51 (HVAC System - General Servicing) Section 52 (Body Control Modules) Section 53 (Steering Column & Steering Column Switches) Section 54 (Analog Instrument Panels) Section 55 (Body Control Modules) Section 56 (Headlight Systems & Daytime Running Lights Systems - Wiring Diagrams) Section 57 (Theft Deterrent System) Section 58 (Analog Instrument Panels) Section 59 (Disc Brakes) Section 60 (Remote Keyless Entry System) Section 61 (HVAC Systems - Automatic) Section 62 (HVAC Systems - Automatic) Section 63 (Drive Axles) Section 64 (Computer Relearn Procedures) Section 65 (Computer Relearn Procedures) Section 66 (Power Door Lock System & Trunk Release) Section 67 (HVAC Systems - Manual) Section 68 (HVAC Systems - Manual) Section 69 (HVAC Systems - Manual) Section 70 (Front Suspension System) Section 71 (Automatic Transaxle Overhaul & Testing - 4T65-E) Section 72 (Rear Suspension System) Section 73 (System Wiring Diagrams - G1500) Section 74 (System Wiring Diagrams - G2500) Section 75 (System Wiring Diagrams - G3500) Section 76 (System Wiring Diagrams) Section 77 (System Wiring Diagrams) Section 78 (Rear Suspension System) Section 79 (Disc Brakes) Section 80 (Axle Shafts - Front) Section 81 (Automatic Transaxle Diagnosis - 4T65-E) Section 82 (Disc Brakes & Drum Brakes) Section 83 (Servicing - A/T (VT25-E)) Section 84 (Shift Interlock Systems) Section 85 (Disc Brakes & Drum Brakes) Section 86 (Shift Interlock Systems) Section 87 (Servicing - A/T (AF33-5)) Section 88 (Automatic Transmission Diagnosis - 4L80-E (Gasoline)) Section 89 (Engine Controls Self-Diagnostics - 4.3L) Section 90 (Engine Controls Self-Diagnostics - 4.3L) Section 91 (Electrical Component Locator) Section 92 (Electrical Component Locator) Section 93 (Electrical Component Locator) Section 94 (Engine Controls Self-Diagnostics - 5.0L & 5,7L) Section 95 (Supplemental Inflatable Restraint System Deactivation Procedures) Section 96 (Automatic Transaxle Servicing) Section 97 (Automatic Transmission Servicing) Section 98 (Automatic Transmission Servicing) Section 99 (Engine Control System Self-Diagnostics - 3.1L Engine) Section 100 (Automatic Transmission Servicing) Section 101 (Automatic Transmission
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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.