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 MANUALSCHEVROLET2000S10/T10 P/U 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)SERVICE AND REPAIR
2000 Chevrolet S10/T10 P/U 2WD V6-4.3L VIN W
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
2000 Chevrolet S10/T10 P/U 2WD V6-4.3L VIN WSECTION Service and Repair
REMOVAL PROCEDURE
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
CAUTION: Refer to Battery Disconnect Caution In Service Precautions.
1. Disconnect the negative battery cable.
2. Loosen the wing nuts on the air cleaner cover and air cleaner outlet duct.
3. Move the air intake assembly aside.
CAUTION: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.
4. Relieve the coolant pressure.
5. Drain the cooling system below the level of the ECT sensor. Refer to Draining and Filling Cooling System in Cooling System.
6. Disconnect the ECT sensor harness connector.
7. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. Coat the threads (only) with GM P/N 12346004 sealer or equivalent.
NOTE: Refer to Component Tightening Notice in Service Precautions.
2. Install the ECT sensor in the engine.
Tighten
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor harness connector.
4. Refill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
5. Install the air cleaner outlet duct assembly and tighten the wing nuts.
6. Connect the negative battery cable.
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
CAUTION: Refer to Battery Disconnect Caution In Service Precautions.
1. Disconnect the negative battery cable.
2. Loosen the wing nuts on the air cleaner cover and air cleaner outlet duct.
3. Move the air intake assembly aside.
CAUTION: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.
4. Relieve the coolant pressure.
5. Drain the cooling system below the level of the ECT sensor. Refer to Draining and Filling Cooling System in Cooling System.
6. Disconnect the ECT sensor harness connector.
7. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. Coat the threads (only) with GM P/N 12346004 sealer or equivalent.
NOTE: Refer to Component Tightening Notice in Service Precautions.
2. Install the ECT sensor in the engine.
Tighten
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor harness connector.
4. Refill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
5. Install the air cleaner outlet duct assembly and tighten the wing nuts.
6. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
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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.