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.
Coolant Temperature Sensor
The coolant temperature sensor is located on the cylinder head. On Federal models, sensor has a 2-pin connector, one for Electronic Ignition System (EZL) and one for the CIS-E injection system. On California models, sensor has 4-pin connector, 2 for ground connections (CIS-E control unit and engine ground) and one connection each for the temperature signals to the CIS-E control unit and the EZL module.
Use the Manual With the Right Hardware
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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.