OEM 2005 Cadillac DeVille Heater Core

2005 Cadillac DeVille Parts Questions & Experts Answers

• Q: How to replace the Heater Core on 2005 Cadillac DeVille?

  A: Replacement of the Heater Core begins with the draining process of the cooling system. The heater hose clamp tool (J 37097-A) allows handling the heater hoses until they become detached from the Heater Core. Start by taking out the auxiliary Blower Motor assembly and proceed to remove the Heater Core cover screws then the Heater Core retaining screws. You must remove the Heater Core retaining straps after you extract the Heater Core along with its case seals from the system. First install the new Heater Core into position then add the Heater Core retaining straps while inserting the Heater Core case seals before securing everything with retaining screws. The Heater Core gets secured by retaining screws which should be tightened to 1.4 n.m (13 lb in), followed by Heater Core cover screws installation at the same torque of 1.4 n.m (13 lb in). The procedure ends with the use of the heater hose clamp tool (J 37097-A) to attach heater hoses to the Heater Core after cooling system filling.