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Engine Coolant Temperature Sensor Replacement

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Coolant Temperature Sensor
GM2208390Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Coolant Temperature Sensor
CAUTION: Refer to Fastener Caution .

Procedure: 
Disconnect the electrical connector.

Tighten:  20 N.m (15 lb ft)