OEM Cadillac Escalade EXT Heater Core

Cadillac Escalade EXT Heater Core Parts Questions & Experts Answers

• Heater Core
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  Q: How to replace the Heater Core (Delphi) on Cadillac Escalade EXT?

  A: A replacement of the heater core (Delphi) requires disassembly of the HVAC module assembly. You must first remove the screws from the heater core cover and extract it away from the HVAC module assembly. The technician should then remove the heater core cowl gasket from the heater core before taking out the heater core from the HVAC module assembly. Starting with heater core installation requires placing it inside the HVAC module assembly then following with the heater core cowl gasket installation onto the heater core . After installing the heater core cover correctly place it onto the HVAC module assembly. Select appropriate fasteners which must be installed to their proper positions and verify that new fasteners provide the correct part number for their designated application. The service procedure indicates all fasteners requiring replacement as well as those needing thread locking compound or sealant. No paints and lubricants should be used on fasteners and joint surfaces because these substances alter torque and clamping force and potentially harm the fastener structure. The correct tightening sequence along with specifications must be followed so that systems and parts remain unharmed. Secure the screws on the heater core cover before tightening them to 2 Nm (18 lb in) and reinstall the HVAC module assembly.