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.

Fig 1: Electrical Connector, Sensor & Water Pump Housing

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. Refer to BODY, AIR CLEANER, REMOVAL or BODY, AIR CLEANER, REMOVAL, 5.7L or BODY, AIR CLEANER, REMOVAL .
NOTE:
Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
Partially drain the cooling system. Refer to STANDARD PROCEDURE .
Disconnect electrical connector (3) from sensor (2).
Remove sensor from the water pump housing.