Engine Coolant Temperature Sensor - Removal

5.7L ENGINE










The Engine Coolant Temperature (ECT) sensor on the 5.7L 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.

1. Partially drain the cooling system Service and Repair.
2. Remove accessory drive belt Serpentine Accessory Drive Belt - Removal.
3. 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.
4. Disconnect electrical connector from sensor.
5. Remove sensor from cylinder block.