Engine Coolant Temperature (ECT) Sensor Replacement: Notes
WARNING: This page is about a different car, the 2004 Saturn Ion 3, 2004 Saturn Ion 2, and 2004 Saturn Ion 1. 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.