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.
2002 Chevrolet Express 3/4 Ton Van V8-6.5L DSL Turbo VIN FFACTORY OEM SERVICE PROCEDURE
Powertrain Management: Technical Service Bulletins
- Recalls
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- A/T - Slips/Harsh Shifts/Delayed Shifts/Multiple DTC's
- Auxiliary Equipment - Auxiliary Generator Won't Run
- Computers And Controls - DTC's Set Replacing Modules
- A/T - SES Lamp ON/DTC's Set/Slipping/Delayed Shifts
- Electrical - A/T Stuck in 2nd/3rd Gear/MIL ON/DTC's
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- By Symptom
- Abnormal wear/deterioration
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- A/T - Slips/Harsh Shifts/Delayed Shifts/Multiple DTC's
- Auxiliary Equipment - Auxiliary Generator Won't Run
- Computers And Controls - DTC's Set Replacing Modules
- A/T - SES Lamp ON/DTC's Set/Slipping/Delayed Shifts
- Electrical - A/T Stuck in 2nd/3rd Gear/MIL ON/DTC's
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Driveability
- Erratic Shifting
- Hard Shifting
- Inoperative
- No shift/Incorrect gear engagement
- Noise
- Poor performance
- Recalls
- Slipping
- Smoke, Fumes
- Starting problems
- All Technical Service Bulletins
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- Engine - THIS BULLETIN HAS BEEN CANCELED
- Fuel System - Fuel Injector Maintenance Cleaning
- Fuel System - GM Fuel System Treatment PLUS(R) Info.
- Electrical - MIL ON/DTC's Set By Various Control Modules
- A/T Control - DTC P0756 Diagnostic Tips
- A/T - MIL ON/DTC P0757/Harsh or Slipping 2-3 Shift
- A/T - DTC P0894 and P1870 Diagnostic Tips
- A/T - Slips/Harsh Shifts/Delayed Shifts/Multiple DTC's
- Engine Controls - MIL Function During I/M Testing
- Electrical - Harness Connection Inspection
- PCM/BCM Replacement - DTC's B001/B1271/B1780 Set
- Auxiliary Equipment - Auxiliary Generator Won't Run
- Accessories - DTC's P0300, P1380, P1381
- EVAP System - Monitor Strategy
- Computers And Controls - DTC's Set Replacing Modules
- Body Control - Update of Some Control Module DTC's
- A/T - SES Lamp ON/DTC's Set/Slipping/Delayed Shifts
- Engine Controls - Revised DTC P1217 Chart
- Engine Controls - Revised Diagnostic System Check
- Engine Controls - Revised DTC P0236
- Electrical - A/T Stuck in 2nd/3rd Gear/MIL ON/DTC's
- Ignition Lock Cylinder - Revised Replacement Procedure
- Diesel Fuel System - Fuel Lubricity/Metal Contamination
- Diesel Fuel System - Low Sulfur Fuel Information
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Campaign - Fuel Injection Pump Warranty Extension
- Emission - Emissions Programming Warranty Coverage
- Engine/Fuel System - Oil/Fuel Additive Information
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Fuel System - TOP TIER Detergent Gasoline Information (Canada)
- Fuel System - Information On Diesel Fuel Additives
Factory Service Tools
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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.
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