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
Verifying Vehicle Repair
Verification of vehicle repairs will be more comprehensive for vehicles with the OBD II system diagnostics. Following a repair, the technician should perform the following steps:
1. Review the Failure Records and the Freeze Frame data for the DTC that was diagnosed. Record the Freeze Frame/Failure Records data. The Freeze Frame data will only store for an A or B type diagnostic and only if the MIL has illuminated.
2. Clear the DTCs.
3. Operate the vehicle within the conditions noted in the Freeze Frame/Failure Records data.
4. Monitor the DTC status information for the specific DTC that was diagnosed until the diagnostic test associated with that DTC runs.
Following these steps is very important in verifying repairs on the OBD II system. Failure to follow these steps could result in unnecessary repairs.
1. Review the Failure Records and the Freeze Frame data for the DTC that was diagnosed. Record the Freeze Frame/Failure Records data. The Freeze Frame data will only store for an A or B type diagnostic and only if the MIL has illuminated.
2. Clear the DTCs.
3. Operate the vehicle within the conditions noted in the Freeze Frame/Failure Records data.
4. Monitor the DTC status information for the specific DTC that was diagnosed until the diagnostic test associated with that DTC runs.
Following these steps is very important in verifying repairs on the OBD II system. Failure to follow these steps could result in unnecessary repairs.
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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