Engine Coolant Temperature Sensor: Installation
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Whenever ECT sensor is removed, coat threads with Sealer (12346004) before reinstallation. Install ECT sensor into engine and tighten to specification. See TORQUE SPECIFICATIONS .
- Reconnect harness connector to ECT sensor. Reconnect negative battery cable. Fill and bleed cooling system.