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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2000K TAHOE 4WD V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)SERVICE AND REPAIR
2000 Chevrolet K Tahoe 4WD V8-5.7L VIN R
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
2000 Chevrolet K Tahoe 4WD V8-5.7L VIN RSECTION 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.
CAUTION: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.
2. Relieve the cooling system pressure.
3. Drain the cooling system below the level of the Engine Coolant Temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Cooling System.
4. Disconnect the ECT sensor harness connector.
5. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. Coat the threads only with sealer P/N 9985253 or equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the ECT sensor.
Tighten
Tighten the ECT sensor to 13 N.m (10 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. 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.
CAUTION: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.
2. Relieve the cooling system pressure.
3. Drain the cooling system below the level of the Engine Coolant Temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Cooling System.
4. Disconnect the ECT sensor harness connector.
5. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. Coat the threads only with sealer P/N 9985253 or equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the ECT sensor.
Tighten
Tighten the ECT sensor to 13 N.m (10 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. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.