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.
- Drain the cooling system. Refer to Draining and Filling Cooling System (L26 Static Fill) , Draining and Filling Cooling System (LY7 Static Fill) or Draining and Filling Cooling System (L26, LY7, GE 47716 Fill) .
- Disconnect the coolant heater cord from the coolant heater.
- Loosen the bolt at the coolant heater but do not remove.
- Remove the coolant heater.
- Remove and clean any burrs, compound, paint, or rough spots from the core plug hole.