OEM 2005 Buick Park Avenue Heater Core

2005 Buick Park Avenue Heater Core Parts and Q&A

• Q: How to replace the Heater Core on 2005 Buick Park Avenue?

  A: The first step for replacing the heater core includes draining the cooling system. The Hose Clamp Pliers (J 38185) should be used to undo plumber clamps before detaching heater hoses from the heater core assembly. Begin by taking off the console assembly before proceeding with the removal of the auxiliary air distribution duct. You must first detach the air filter access cover and the HVAC module assembly heat shield cover. Climb behind the heater core to remove it after first unscrewing its cover screws and properly lowering the cover. Roll off the retaining screws and straps from the heater core to take it out. Install the new heater core within the HVAC module by using retaining straps and screws which should be tightened to 1.5 N.m (18 lb in). Install the heater core cover while securing its attaching screws at 1.4 N.m (12 lb in). Reinstall the air filter access cover by tightening its screws to 1.4 N.m (12 lb in). Then attach the heater core heat shield cover followed by auxiliary air distribution duct and console assembly. The Hose Clamp Pliers (J 38185) enables installation of heater hoses then the cooling system needs filling up.