LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1377 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Air Bleed Valve Facing Upward
    GM233522Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Position the air bleed valve facing upward.
  1. Install the thermostat.
  2. Install a new thermostat O-ring.
  3. Fig 2: Thermostat Housing And Nuts
    GM643937Courtesy of GENERAL MOTORS CORP.
  4. Install the thermostat housing to the cylinder block.
  5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Use the 2 nuts (1) in order to secure the thermostat cap.

    Tighten: 

    • On low output engine, tighten the thermostat cap nuts to 11 N.m (8 lb ft).
    • On high output engine, tighten the thermostat cap nuts to 10 N.m (7 lb ft).

  7. Install the generator. Refer to Generator Replacement in Engine Electrical.
  8. Fill the radiator using approved coolant. Refer to Draining and Filling Cooling System .
  9. Start the engine.
  10. Run the engine until the coolant is at operating temperature. The coolant is at operating temperature when the following conditions exist:
    • The hoses feel warm.
    • The coolant is flowing through the radiator.
  11. Inspect for leaks in the cooling system.
  12. Turn off the engine.
  13. Install the radiator cap.