Question about 1995 Volkswagen Jetta

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The ac in my 95 Jetta just works while the car is cool, then it stop

I have a 1995 Jetta gl iii is 4cyl (2.0L).
When the car is cool, I start the AC and it works, after a certain minutes it stop blowing cold air inside the car. I replace first the condenser, and no changes were shown, then I replace the AC compressor and no changes,
after that I replace the expansion valve and still the same problem.
I tought the problem was electrical and I bypass the ac relay, but any way the ac system still stops just before the temp. gauge reach 1/4.
Thanks

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  • yadayada
    yadayada May 11, 2010

    Have you tested the AC clutch? does it close and the pump run, if it is not working test the leads to the compressor clutch with the ac on, there should be 12 volts and a ground present.

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In addition to what emission wiz says, observe the speed of the fan when you turn on the a/c. some fans, when the are cold they run faster, then they get hot and slow down a lot. Also check that the small belt that drives the second propeller is ok. And for last, check that the front of the radiator is clear of any garbage, like a plastic bag that might have been cought in front of the condenser with the wind. If all this is working properly, there is nothing else that could be happening machanically to this a/c to stop it from cooling. look at the center of the pully of the compresor, make sure the entire thig is spining when clutch engages.

Posted on Dec 15, 2008

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