Sensor, Coolant Temperature: Removal: 5.7L/6.4L

The Engine Coolant Temperature (ECT) sensor is located on the upper portion of the water pump housing. It is installed into a water jacket inline with the thermostat.

Courtesy of CHRYSLER GROUP, LLC

WARNING:

Hot, pressurized coolant can cause injury by scalding. Cooling system must be partially drained before removing the coolant temperature sensor.

Remove the air intake system. For 5.7L refer to REMOVAL , for 6.4L Refer to BODY, AIR CLEANER, REMOVAL .
NOTE:
Do not waste reusable coolant. If the solution is clean, drain the coolant into a clean container for reuse.
Partially drain the cooling system. Refer to DRAINING .
Disconnect the wire harness connector (3) from the sensor (2).
Remove the sensor from the water pump housing.