Q: How to replace the evaporator core on Cadillac Escalade?
A: The replacement of the Evaporator core begins with hvac module removal. The screwdriver combined with a hammer can eliminate the heat stakes from the hvac module when installed. Unplug every wire connection from the Blower Motor control module with sensors before eliminating the wiring from retainers. First unfasten any screws present on the hvac module assembly if your vehicle has this feature. The Evaporator cowl gasket must be removed from the Evaporator before separating the upper hvac module assembly from the lower hvac module assembly. Take out the Evaporator core from its position in the upper hvac module assembly. Before integrating the new Evaporator core into the hvac module assembly, the system requires refrigerant oil addition. After attaching the upper hvac module assembly to the lower hvac module assembly you must install the Evaporator cowl gasket onto the Evaporator. Install the screws to the hvac module assembly with 2 n.m (18 lb in) torque settings then mount the hvac module assembly.
Q: How to replace the evaporator core on Cadillac CTS?
A: The replacement process begins with evacuating both the HVAC module and TXV insulation. The procedure starts with unfastening the HVAC line clamp screw and HVAC line clamp before removing the TXV to evaporator bolts along with the TXV line bracket. Remove the TXV from the evaporator core by pulling it directly and off the unit and then remove the screws and clips that constructively secure the case. Remove the HVAC module from the thermistor electrical connector and disconnect it before removing the thermistor from both the evaporator core and its core itself. Install new evaporator core seals onto the evaporator before positioning the evaporator core and then add refrigerant oil. Reinstall the thermistor in its original position then combine the HVAC module parts and fasten them with screws that reach 1 N.m (8 lb in) torque. Once done with the case clips installation you need to connect the thermistor electric connector. Refrigerant oil must be applied to A/C lines before sliding them into the TXV while placing the TXV onto the evaporator core until full insertion. Secure the TXV line bracket in position along with the TXV to evaporator bolts through proper tightening of 3.5 N.m (31 lb in). The HVAC line clamp and screw must get replaced before securing the screw with 1 N.m torque (8 lb in). Insulation must then be positioned over lines and TXV before reinstalling the HVAC module.
Q: How to replace the air conditioning evaporator core on Cadillac XLR?
A: The required tools for Evaporator core air conditioning replacement include halogen leak detector (J 39400-A). The first step involves eliminating the hvac module followed by discarding the hvac module assembly foam seal. Begin by unplugging the txv then taking out all mounting bolts of the Evaporator core before extracting the txv device while discarding both sealing washers. Disconnect the electrical connectors and wiring harness pin that belongs to the discharge temperature management sensor device from the hvac module. Place the wiring harness to the side after removing it from the Heater Core cover wire harness retainers. Remove screws from the heater cover of the hvac module followed by removing the heater cover and the Heater Core separately. The Evaporator core extraction requires separating the upper case and the lower case after unscrewing the hvac module case retaining screws. Add the designated pag oil to the new Evaporator core directly and position the seal to face its corners. Position the Evaporator core into the hvac module while inserting new side, upper and two lower seals to the Evaporator core. Rebuild the hvac module by fitting the upper case onto the lower case before securing it with retaining screws that need to be tightened to 1.6 n.m (14 lb in). The procedure includes implementing a fresh foam seal to the Heater Core before reinstalling the Heater Core and heater cover while securing the cover screws to 1.6 n.m (14 lb in). The hvac wiring harness requires connection to the Heater Core cover wiring harness retainers. At the same time, attach the wiring harness retainer pin to the hvac module. The dtm sensor electrical pins should be connected while new sealing washers should be installed on the Evaporator core before attaching and bolting the txv to 7 n.m (62 lb in). The work ends by returning the hvac system back into place.