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 MANUALSCHEVROLET2001VENTURE BASE, VAN CARGO EXTENDEDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTINGFUEL SYSTEM (DIESEL)FUEL HEATER DIAGNOSIS
2001 Chevrolet Venture Base, Van Cargo Extended
Fuel Heater Diagnosis
2001 Chevrolet Venture Base, Van Cargo ExtendedSECTION Fuel Heater Diagnosis
- If water in fuel light is operating properly, go to next step. If water in fuel light is not operating properly, perform water in fuel light diagnosis. See WATER-IN-FUEL LIGHT DIAGNOSIS .
- Disconnect fuel heater harness connector and remove heater from filter housing. With fuel heater temperature greater than 50°F (10°C), apply battery voltage to fuel heater terminal "C" (Pink wire) and ground fuel heater terminal "A" (Black wire). Observe heater element. If heat does not exist, go to next step. If heat exists, go to step 4.
- Cool fuel heater to less than 46°F (8°C) and wet heating element with fuel. Connect fuel heater to battery voltage and ground as in step 2. Observe heater element. If heat does not exist, go to next step. If heat exists, go to step 5.
- Replace fuel heater. After repairs, go to next step.
- Operate vehicle under conditions when problem was noted. If system does not operate properly, go to step 1.
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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.