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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Engine Cooling System) >> Repair Instructions >> Thermostat Housing Replacement (LY7) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the heater hoses from the heater core. Refer to Heater Hoses Replacement (LY7) in Heating, Ventilation and Air Conditioning.
  2. Remove the thermostat. Refer to Thermostat Replacement (RPOs L26/L32) .
    3. Fig 1: View Of Thermostat Housing With Heater Pipes, Heater Hoses, Gasket & Bolts
    GM902889Courtesy of GENERAL MOTORS CORP.
  3. Remove the thermostat housing bolts.
  4. Remove the thermostat housing with the heater pipes, hoses and bolts.
  5. Carefully clean the sealing surfaces with a plastic gasket scraper such as J 28410  or equivalent.
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