Operation CHARM: Car repair manuals for everyone.
Home >> Jeep >> 2003 >> Wrangler L4-2.4L VIN P >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Engine - Coolant Temperature Sensor/Switch >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine - Coolant Temperature Sensor/Switch: Service and Repair

ENGINE COOLANT TEMPERATURE SENSOR

REMOVAL

WARNING: HOT, PRESSURIZED COOLANT CAN CAUSE INJURY BY SCALDING. COOLING SYSTEM MUST BE PARTIALLY DRAINED BEFORE REMOVING ECT (ENGINE COOLANT TEMPERATURE) SENSOR.

1. Partially drain cooling system until coolant level is below cylinder head.








2. Disconnect Engine Coolant Temperature (ECT) sensor wire connector or.
3. Remove sensor from engine.

INSTALLATION
1. Apply sealant to sensor threads (new replacement sensors will have sealant already applied).
2. Install coolant temperature sensor into thermostat housing. Tighten to 11 Nm (8 ft. lbs.) torque.
3. Connect wire connector.
4. Fill cooling system.
pro multis · About Operation CHARM