Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Drain the cooling system. Refer to Draining and Filling Cooling System .
Remove the engine cover.
Remove the coolant temperature sensor electrical connector from the electrical harness at the intake manifold.
Remove the coolant temperature sensor electrical connector from the intake manifold bracket.
Remove the coolant temperature sensor from the cylinder head.

Fig 1: Removing Coolant Temperature Sensor Electrical Connector & Coolant Temperature Sensor
Courtesy of GENERAL MOTORS CORP.