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 MANUALSCHEVROLET1993LUMINA APV V6-3800 3.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)SERVICE AND REPAIR
1993 Chevrolet Lumina APV V6-3800 3.8L
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
1993 Chevrolet Lumina APV V6-3800 3.8LSECTION Service and Repair
IMPORTANT: Care must be taken when handling engine coolant temperature sensor. Damage to engine coolant sensor will affect proper operation of the fuel injection system.
Removal
1. Drain radiator coolant.
2. Disconnect air induction tube.
3. Disconnect electrical connector.
4. Using a 19mm deep well socket and 6 inch extension, remove sensor.
Installation
1. Coat engine coolant temperature sensor threads with sealer P/N 1052080 or equivalent.
2. Install sensor in engine, torque to 30 N-m (22 lb.ft.)
3. Reconnect electrical connector.
4. Refill coolant, install air induction tube.
5. Reconnect Negative battery cable.
6. Start engine and check for leaks.
7. Recheck coolant level.
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.