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.
2006 Pontiac Solstice L4-2.4L VIN BFACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Partially drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill). Service and Repair
2. Disconnect the engine coolant temperature (ECT) sensor electrical connector (4).
3. Remove the ECT.
INSTALLATION PROCEDURE
1. Apply the thread sealant GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the sensor threads.
IMPORTANT: Tap out the sensor mounting hole in the engine head to remove any thread sealant residue. Clean any sealant residue from the old sensor and apply the RTV sealant to threads if old the sensor is going to be reused.
NOTE: Refer to Fastener Notice.
2. Install the ECT.
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor electrical connector (4).
4. Fill the cooling system as needed. Refer to Draining and Filling Cooling System (Static Fill). Service and Repair
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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