Review on ACDelco 15 80571 Original Equipment Conditioning by Hco Cortes

If your fan loses a few RPMs over time then it's most likely to blame. Eventually you lose all speeds except HIGH and OFF (yes, OFF is speed). This resistor pack resides in the fan case and probably keeps it cool when the fan is running, but it can fail over time. Last time my AC drain was clogged and water got into the fan housing which shorted out the resistor pack. Attention: very difficult to access! Slide the passenger seat all the way back. I actually do it upside down with my head on the floor and my feet on the roof. To replace, you need to remove the kick strip under the glove box (just cut the plastic cotter pins, you can buy a replacement at any auto part). to keep). Then disconnect the red/black wire from the fan motor and the black rubber hose that runs between the motor and the case. Then remove the fan/motor plate by unscrewing the 3 gold hex head screws and removing the plate from the case. The resistor pack faces the firewall, with three very small hex screws holding it to the bottom of the fan housing: 2 screws hold one end to the firewall and one screw holds the opposite edge. Remove the wiring harness. To remove the resistance block, the easiest way is to loosen just one screw and then move it away from the two rear screws towards you. Reassembly is done in reverse order only.