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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 862 (Engine Cooling System) >> Repair Instructions >> Engine Coolant Thermostat Replacement (LMM) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Rear Thermostat & Vent Valves
    GM654534Courtesy of GENERAL MOTORS CORP.
  1. Install the thermostats and seals to the thermostat housing.

    The rear thermostat (4) has 2 vent valves. Install with the vent valves towards the rear of engine.

    2. Fig 2: View Of Thermostat Housing Cover Bolts
    GM1883707Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  2. Install the thermostat housing cover.
  3. Install the thermostat housing cover bolts (1).

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

  4. Install the fuel line bracket.
  5. Install the fuel line bracket bolt.

    Tighten:  Tighten the bolt to 21 N.m (15 lb ft).

  6. Install the water outlet tube. Refer to Water Outlet Tube Replacement (LMM) .
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