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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1115 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Thermostat (LY7)
    GM1395436Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW thermostat gasket.
  2. Install the thermostat and gasket.
  3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the thermostat bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  5. Install the coolant inlet pipe. Refer to Coolant Pipe Replacement - Inlet .
  6. Install the heater pipes. Refer to Heater Pipes Replacement (LY7) in Heating, Ventilation and Air Conditioning.
  7. Install the throttle body assembly. Refer to Throttle Body Assembly Replacement .
  8. Install the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.6L (LY7).
  9. Fill the cooling system. Refer to Draining and Filling Cooling System .