Engine Coolant Temperature Sensor: Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
Turn off the engine. Drain the coolant below the level of the Engine Coolant Temperature (ECT) sensor. Disconnect the ECT sensor electrical connect. See Figure. Remove the ECT sensor.