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Engine Coolant Temperature Sensor Replacement

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Fig 1: Identifying Engine Coolant Temperature Sensor (LF1)
GM2193079Courtesy of GENERAL MOTORS COMPANY
Engine Coolant Temperature Sensor Replacement

Callout Component Name
Preliminary Procedure 
Partially drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) , Cooling System Draining and Filling (LFX, Static Fill) , Cooling System Draining and Filling (LSA, LS3, L99 Static Fill) .
1 Engine Coolant Temperature Sensor
CAUTION:

Refer to Fastener Caution .

Procedure

  1. Reposition the sensor heat shield.
  2. Disconnect the ECT sensor harness connector.

Tighten 
20 N.m (35 lb in)
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