Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

NOTE: Refer to COMPONENT FASTENER TIGHTENING NOTICE in Cautions and Notices.

Coat the threads with sealer GM P/N 9985253 or equivalent.
Install the ECT sensor.
Tighten: Tighten the ECT sensor to 20 N.m (15 lb ft).

Fig 1: View Of ECT Sensor
Courtesy of GENERAL MOTORS CORP.
Connect the ECT sensor harness connector to the ECT sensor.

Fig 2: Identifying Engine Coolant Temperature (ECT) Sensor Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Refill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
Install the engine cover. Refer to Engine Cover Replacement in Interior Trim.