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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 784 (Engine Cooling System) >> Repair Instructions >> Engine Coolant Thermostat Replacement (LE5) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Thermostat Housing Cover Bolts & Cover
    GM1713064Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW thermostat cover O-ring seal.
  2. Install the thermostat.
  3. NOTE: Refer to Fastener Notice .
  4. Install the thermostat cover bolts.

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

  5. Fig 2: Identifying Radiator Outlet Hose Clamp
    GM1649362Courtesy of GENERAL MOTORS CORP.
  6. Install the radiator outlet hose to the thermostat cover.
  7. Reposition the radiator outlet hose clamp (1) at the thermostat cover. Proceed to step 11.
  8. Fig 3: View Of Radiator Surge Tank Outlet Hose To Thermostat Cover And Oil Cooler
    GM1656116Courtesy of GENERAL MOTORS CORP.
  9. Install the radiator surge tank outlet hose to the thermostat cover.
  10. Position the radiator surge tank outlet hose clamp (1) at the thermostat cover.
  11. Fig 4: View Of Radiator Outlet Hose To Thermostat Housing
    GM1656115Courtesy of GENERAL MOTORS CORP.
  12. Install the radiator outlet hose to the thermostat cover.
  13. Position the radiator outlet hose clamp (1) at the thermostat cover.
  14. Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716 Fill)  or Cooling System Draining and Filling (Static Fill LE5, L61)  or Cooling System Draining and Filling (Static Fill LNF) .
  15. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .