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 MANUALSCHEVROLET1998METRO L4-079 1.3L VIN 2 MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)SERVICE AND REPAIR
1998 Chevrolet Metro L4-079 1.3L VIN 2 MFI
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
1998 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION Service and Repair
Removal Procedure
Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Drain the engine coolant system.
2. Disconnect the ECT sensor electrical connector.
3. Remove the ECT sensor from the thermostat housing.
Installation Procedure
1. Install the ECT sensor to the thermostat housing.
Tighten
Tighten the ECT sensor to 15 N.m (11 lb ft).
Notice: Refer to Component Tightening Notice in Cautions and Notices.
2. Connect the ECT sensor electrical connector.
3. Fill the engine coolant system to the proper level.
Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Drain the engine coolant system.
2. Disconnect the ECT sensor electrical connector.
3. Remove the ECT sensor from the thermostat housing.
Installation Procedure
1. Install the ECT sensor to the thermostat housing.
Tighten
Tighten the ECT sensor to 15 N.m (11 lb ft).
Notice: Refer to Component Tightening Notice in Cautions and Notices.
2. Connect the ECT sensor electrical connector.
3. Fill the engine coolant system to the proper level.
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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.