Sensor - Engine Coolant Temperature: Removal: 5.7L/6.1L

Fig 1: Removing/Installing Engine Coolant Temperature Sensor - 5.7L

Courtesy of CHRYSLER LLC

The Engine Coolant Temperature (ECT) sensor (3) on the 5.7L/6.1L engine is located under the air conditioning compressor. It is installed into a water jacket at the front of the cylinder block.

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

Partially drain the cooling system. See STANDARD PROCEDURE .
Remove accessory drive belt. See REMOVAL .
Carefully unbolt air conditioning compressor from front of engine. Do not disconnect any A/C hoses from compressor. Temporarily support compressor to gain access to ECT sensor (3).
Disconnect electrical connector (2) from sensor (3).
Remove sensor (3) from cylinder block.