Question about Cars & Trucks
Ac compressor seized up in 1999 ford crown Victoria causing belt to smoke. Can get a bypass pulley at auto store. How difficult and what tools would you need to replace ac system, also a/c unit has never even worked in car how ever its part of serpentine belt system.
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Posted on Jan 02, 2017
If the compressor doesn't engage..it could be the pressure switch and or it could also be low in a134 to the system.
Best would be to jump the clutch wire from the compressor (i.e. direct tht wire on the positive terminal or any nearest available 'live' point).
Let the car's engine run and also the AC control switch to "ON' postion having the blower fan inside the car running.
Once done all this check if the compressor is now running and if theres cooling inside the car and also best would be to check the sight glass for any bubbles , this is normally situated around the filter/drier at around the condensor infront of the radiator or within the area.
If the compressor runs and theres cooling thn theres a problem with your pressure switch, if theres low cooling thn you may need to recharge the a134 and run a leakage test.
Hope this helps!
Posted on Aug 23, 2009
Also check to see if there is power in the start wire form the ignition switch, the wire is a white wire with pink stripe, most likely not a common problem, but still something that could go wrong. this wire will feed the starter relay under the hood...
Posted on Sep 23, 2009
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