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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1571 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement (3.5L (L66)) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Exploded View Of Thermostat (L66)
    GM1237799Courtesy of GENERAL MOTORS CORP.
  1. Drain the coolant. Refer to Draining and Filling Cooling System (Static Fill)  or Draining and Filling Cooling System (GE 47716 Fill) .
  2. Remove the battery. Refer to Battery Replacement (2.2L (L61) and 3.5L (L66)) or Battery Replacement (2.4L (LAT)) .
  3. Remove the thermostat housing.
  4. Remove the thermostat.
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