Q: How to replace the heater core in a Visteon system on Cadillac Escalade?
A: Replacing the heater core in Visteon requires beginning with HVAC module assembly removal. Starting with the heater core cover you should detach its screws before extracting the cover away from the HVAC module assembly . The technician needs to detach the heater core cowl gasket from the heater core before extracting the heater core from the HVAC module assembly. The heater core insertion into the HVAC module assembly should be the first installation step followed by heater core cowl gasket installation and heater core cover installation onto HVAC module assembly. Fasten the heater core cover by using the screws while applying 2 Nm (18 lb in) torque and reattach the HVAC module assembly.
Q: How to replace the Heater Core on Cadillac CTS?
A: The hvac module needs removal as the first step to replace the Heater Core. First remove the heater hose bracket screw followed by taking out the heater hose bracket. Pull the Heater Core out from the hvac module slot. Installing the Heater Core requires positioning it inside the hvac module before adding the heater hose bracket and securing it with the correct height using a heater hose bracket screw tightened to 1 n.m (9 lb in) according to the fastener notice in service precautions. Finally, reinstall the hvac module.
Q: How to Service and Repair the Heater Core on Cadillac XLR?
A: One must begin by disassembling the hvac module for replacement of the Heater Core. Also eliminate the hvac module assembly foam seal before continuing. Disengage electrical connections of the discharge temperature management (DTM) sensor while removing the hvac module wiring harness retainer pin. The wiring harness needs its retainers on the Heater Core cover unclipped before placing them safely to the side. You can replace the Heater Core by first removing the heater cover screws from the hvac module that leads to heater cover removal so you can extract the Heater Core. New Heater Core seals should be used during any installation of a new Heater Core. You must put the new foam seal on the Heater Core before inserting it back into the hvac module. Attach the heater cover to the hvac module before securing it with heater cover screws which must be tightened to 1.6 n.m (14 lb in). The hvac wiring harness needs to connect to the Heater Core cover wiring harness retainers first before insertion of the hvac module wiring harness retainer pin to the hvac module and connection of the discharge temperature management (DTM) sensor electrical connectors finally before hvac module installation.