I posted this in the Jetta IV forum... any help would be appreciated as well....
I have a 2000 Jetta GLX VR6 that's having AC problems. The stealership said that I needed to replace the large cooling fan as well as the high pressure switch to get the AC functioning again.
I read a bunch of posts re: replacing the large cooling fans and troubleshooting them. This weekend, I replaced the large fan after confirming that it was indeed dead. Now however, neither of the fans come on when I start the engine. If I bridge the thermoswitch, the fans come on just fine (both speeds), however when I start the engine, neither of the fans come on. Does the AC high pressure switch have any affect? It only detects the freon pressure and turns off the compressor if the pressure is too high. Could the thermal Switch on the radiator be bad? What else can I check?
2000 Jetta GLX