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 (Computer Relearn Procedures) Section 2 (Engine Controls - Specifications - 4.3L) Section 3 (Engine Controls - Adjustments - 4.3L.) Section 4 (Engine Controls - Specifications - 5.7L.) Section 5 (Engine Controls - Adjustments - 5.7L.) Section 6 (Engine Controls - Basic Diagnostic Procedures - 4.3L) Section 7 (Engine Controls - System/Component Tests - 5.7L.) Section 8 (Engine Controls - Basic Testing - 7.4L) Section 9 (Engine Controls - Basic Testing - 5.7L) Section 10 (Engine Controls - Service & Adjustment System Specifications - G Series) Section 11 (Engine Controls - Tests W/Codes - G Series (Gasoline)) Section 12 (Engine Controls - Tests W/Codes - G Series (6.5L Diesel) ) Section 13 (Engine Controls - Basic Diagnostic Procedures - G Series (Gasoline)) Section 14 (Engine Controls - Basic Diagnostic Procedures - G Series (Diesel)) Section 15 (Engine Controls - Removal, Installation & Overhaul - G Series (Gasoline)) Section 16 (Engine Controls - Removal, Installation & Overhaul - G Series (Diesel)) Section 17 (Steering Column Switches) Section 18 (HVAC System - Specifications) Section 19 (Heater System - Troubleshooting) Section 20 (Heater System) Section 21 (HVAC System - Manual - G Series Van) Section 22 (HVAC System Trouble Shooting - Manual - G Series Van) Section 23 (Disc Brakes & Drum Brakes - G Series Van) Section 24 (Anti-Lock Brake System - Gasoline) Section 25 (Anti-Lock Brake System - Diesel) Section 26 (Power Brake Booster - BENDIX Hydro-Boost - G Series Van) Section 27 (Engine Cooling System Specifications) Section 28 (Drive Belt Routing) Section 29 (Suspension - Front Coil Spring - G Series Van) Section 30 (Wheel Alignment Specifications & Adjustment Procedures - G Series Van) Section 31 (Engine Mechanical - 4.3L V6 - VIN W &,X) Section 32 (Engine Mechanical - 5.7L V8 - VIN [R]) Section 33 (Engine Mechanical - 7.4L V8 - VIN [J]) Section 34 (Engine Mechanical - 5.0L V8 - VIN [M]) Section 35 (Engine Mechanical - 6.5L V8 Diesel - VIN [P]) Section 36 (Automatic Transmission Diagnosis - 4L60-E) Section 37 (Automatic Transmission Diagnosis - 4L80-E) Section 38 (Starting System) Section 39 (Charging System) Section 40 (Engine Controls - Distributor Installation - 4.3L V6, 5.0L, 5.7L & 7.4L - Truck) Different car Section 1 (Wheel Alignment Specifications & Adjustment Procedures) Section 2 (How To Use The Engine Performance Section) Section 3 (FRONT SUSPENSION - 2WD Coil Spring - G-Series) Section 4 (Computer Relearn Procedures) Section 5 (Engine Controls - Specifications - Gasoline) Section 6 (Engine Controls - Specifications - Gasoline) Section 7 (Engine Controls - Specifications - 6.5L Diesel) Section 8 (Engine Controls - Adjustments - Gasoline) Section 9 (Engine Controls - Tests W/O Codes - Gasoline) Section 10 (Engine Controls - Adjustments - Gasoline) Section 11 (Engine Controls - Tests W/O Codes - Gasoline) Section 12 (Engine Controls - Adjustments - 6.5L Diesel) Section 13 (6.5L V8 Diesel & Turbo Diesel - VINS [F,P,S,Y]) Section 14 (Engine Controls - Tests W/Codes - 4.3L) Section 15 (Engine Controls - Theory & Operation - Gasoline) Section 16 (Engine Controls - System/Component Tests - Gasoline) Section 17 (Engine Controls - Tests W/Codes - 5.0L) Section 18 (Engine Controls - Tests W/Codes - 5.7L) Section 19 (Engine Controls - Tests W/Codes - 7.4L) Section 20 (Engine Controls - Basic Testing - Gasoline) Section 21 (Vacuum Diagrams) Section 22 (Engine Controls - System/Component Tests - Gasoline) Section 23 (Engine Controls - Basic Testing - Gasoline) Section 24 (Vacuum Diagrams) Section 25 (Engine Controls - Tests W/Codes - 6.5L Diesel) Section 26 (Engine Controls - Tests W/Codes - 6.5L Diesel) Section 27 (Engine Controls - Tests W/O Codes - 6.5L Diesel) Section 28 (Engine Controls - System/Component Tests - 6.5L Diesel) Section 29 (Engine Controls - Basic Testing - 6.5L Diesel) Section 30 (Engine Controls - Tests W/Codes - Electronic Transmission) Section 31 (Engine Controls - Pin Voltage Charts) Section 32 (Engine Controls - Sensor Operating Range Charts) Section 33 (Engine Controls - Remove/Install/Overhaul) Section 34 (Engine Controls - Remove/Install/Overhaul) Section 35 (Engine Controls - Specifications - 2.2L) Section 36 (Engine Controls - Adjustments - 2.2L) Section 37 (Engine Controls - Specifications - 3.1L) Section 38 (Engine Controls - Adjustments - 3.1L) Section 39 (Engine Controls - Specifications - 3.8L) Section 40 (Engine Controls - Adjustments - 3.8L) Section 41 (Engine Controls - Specifications - 5.0L) Section 42 (Engine Controls - Adjustments - 5.0L) Section 43 (Engine Controls - Specifications - 7.4L) Section 44 (Engine Controls - Adjustments - 7.4L) Section 45 (Engine Controls - Tests W/O Codes - Gasoline) Section 46 (Engine Controls - System/Component Tests - 2.2L) Section 47 (Engine Controls - Basic Testing - 2.2L) Section 48 (Vacuum Diagrams - 2.2L) Section 49 (Engine Controls - Tests W/Codes - 2.2L) Section 50 (Engine Controls - System/Component Tests - 3.1L) Section 51 (Engine Controls - Basic Testing - 3.1L) Section 52 (Vacuum Diagrams - 3.1L) Section 53 (Engine Controls - Tests W/Codes - 3.1L) Section 54 (Engine Controls - System/Component Tests - 3.8L) Section 55 (Vacuum Diagrams - 3.8L) Section 56 (Engine Controls - Tests W/Codes - 3.8L) Section 57 (Engine Controls - Basic Testing - 3.8L) Section 58 (Engine Controls - System/Component Tests - 4.3L.) Section 59 (Engine Controls - System/Component Tests - 5.0L) Section 60 (Engine Controls - Basic Testing - 5.0L) Section 61 (Vacuum Diagrams - 5.0L) Section 62 (Engine Controls - Tests W/Codes - 5.0L) Section 63 (Engine Controls - Tests W/Codes - 6.5L Diesel) Section 64 (Engine Controls - System/Component Tests - 7.4L) Section 65 (Vacuum Diagrams - 7.4L) Section 66 (Engine Controls - Tests W/Codes - 7.4L) Section 67 (Computer Relearn Procedures) Section 68 (Cooling System Specifications) Section 69 (Engine Cooling Fan) Section 70 (Cooling System Specifications) Section 71 (Engine Cooling Fan) Section 72 (Engine Control System - Service & Adjustment Specifications) Section 73 (Engine Control System - Basic Engine Testing - 3.8L) Section 74 (Engine Controls - Tests W/Codes - P Series (Gasoline)) Section 75 (Wiper/Washer System - P Series Vans) Section 76 (Supplemental Inflatable Restraint System) Section 77 (A/C Compressor Servicing) Section 78 (A/C Compressor Refrigerant Oil Checking) Section 79 (Manual Transmission Clutches) Section 80 (Drive Axle Ratio Identification) Section 81 (Drive Axle Ratio Identification) Section 82 (Front Suspension - Coil Spring (G Series)) Section 83 (Wheel Alignment Specifications & Adjustment Procedures (G Series)) Section 84 (Automatic Transmission Diagnosis - 4L80-E) Section 85 (Jacking & Hoisting) Section 86 (Rear Suspension - G Series Vans, New Style)
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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.