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.
2000 Chevrolet Venture V6-3.4L VIN EFACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
REMOVAL PROCEDURE
1. Turn OFF the ignition.
2. Relieve the coolant pressure.
3. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.
4. Use a deep well socket and an extension in order to remove the sensor.
INSTALLATION PROCEDURE
1. Coat the ECT sensor threads with sealer GM P/N 9985253 or equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the sensor in the engine.
Tighten
Tighten the sensor to 23 N.m (17 lb ft).
3. Connect the ECT sensor electrical connector.
4. Start the engine.
5. Inspect for leaks.
6. Inspect the coolant level.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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