OEM 2006 Chevrolet Uplander Evaporator

2006 Chevrolet Uplander Parts Questions & Experts Answers

• Q: How to replace the auxiliary evaporator core on 2006 Chevrolet Uplander?

  A: A halogen leak detector model j 39400-a should be used to check for leaks in the component fittings after installation. Start by taking away the auxiliary hvac module assembly followed by removing screws from the auxiliary thermal expansion valve (TXV) line clamp then disconnecting the auxiliary txv line clamp from the hvac module assembly. Afterwards you should remove the txv insulation and the bolt from the auxiliary txv line block fitting before disconnecting the a/c lines from the auxiliary thermal expansion value. All sealing washers should be discarded. There should be immediate application of caps or tape to both open a/c lines to stop system contamination. Evacuate the auxiliary txv from the auxiliary Evaporator core by taking out its bolts before discarding the sealing washers. Start by unplugging the auxiliary temperature actuator screws along with its component from the auxiliary hvac module beneath the blower motor housing screws which you must also detach from the hvac module. Use heat to obtain the auxiliary Evaporator core by first removing all case screws from the lower hvac module case then separating the halves. The specified pag oil amount must be applied directly to a new auxiliary Evaporator core before placing it inside the lower hvac module case for assembly. Secure the case with screws at 1.6 n.m (14 lb in) torque setting. The service continues with housing the auxiliary blower motor and its screws to 1.6 n.m (14 lb in) torque before proceeding to tighten the auxiliary temperature actuator and its screws to 1.6 n.m (14 lb in). You must install new sealing washers in the auxiliary Evaporator core before removing the cap or tape from a/c lines to connect the auxiliary txv to the core while using mounting bolts that need a torque of 3.5 n.m (31 lb in). Fasten new sealing washers to the auxiliary txv line block fitting then use this fitting to join with the auxiliary Evaporator core while using the retaining bolt at 11 n.m (97 lb in). The last step includes installing new txv insulation while attaching the auxiliary txv line clamp to the hvac module assembly before tightening its screws to 1.6 n.m (14 lb in) to reinstall the assembly.