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 MANUALSCHEVROLET2000CHEVY EXPRESS G3500, VAN CARGO EXTENDED, 6.5 FREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM & COMPONENT TESTSFUEL SYSTEM (DIESEL)PRELIMINARY GLOW PLUG DIAGNOSIS
2000 Chevrolet Chevy Express G3500, Van Cargo Extended, 6.5 F
Preliminary Glow Plug Diagnosis
2000 Chevrolet Chevy Express G3500, Van Cargo Extended, 6.5 FSECTION Preliminary Glow Plug Diagnosis
NOTE:
Glow plug on-and-off times vary with engine temperature, system voltage and/or ambient temperature. Lower temperatures cause longer duration of cycling.
- If system does not operate as described in NORMAL GLOW PLUG CIRCUIT OPERATION , ensure glow plug system is correctly installed. Ensure all connectors are properly attached, clean and tight. Inspect engine harness ground connection. Ensure nuts securing glow plug relay to engine are tightened to 31 ft. lbs. (42 N.m). Ensure connector is fully seated in relay.
- Ensure glow plug relay copper stud upper nuts are tightened to 44 INCH lbs. (5 N.m). DO NOT overtighten nuts. Inspect WAIT TO START light on instrument cluster for tight connection and proper operation.
RENDER: 1.0x
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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.