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/Switch (For Computer): Service and Repair
2003 Chrysler 300M V6-3.5L VIN MSECTION Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR
REMOVAL
1. Disconnect negative cable from remote jumper terminal.
2. With the engine cold, disconnect coolant sensor electrical connector or.
3. Remove sensor.
INSTALLATION
1. Install engine coolant temperature sensor or. Tighten sensor to 28 Nm (20 ft. lbs.) torque.
2. Attach electrical connector to sensor.
3. Connect negative cable to remote jumper terminal.
REMOVAL
1. Disconnect negative cable from remote jumper terminal.
2. With the engine cold, disconnect coolant sensor electrical connector or.
3. Remove sensor.
INSTALLATION
1. Install engine coolant temperature sensor or. Tighten sensor to 28 Nm (20 ft. lbs.) torque.
2. Attach electrical connector to sensor.
3. Connect negative cable to remote jumper terminal.
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.