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Help!!! 97 Volvo 850 T5, A\C dose not work

posted by  uj on  Mon Jul 21 08:30 CST 2003
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97 Volvo 850 T5, A\C dose not work. Freon Pressure is ok.
When I start the engine with A\C on, Compressor run for few seconds and turns off. Evean I turn the A\C switch on & off the compressor dose not work until I start the engine again. I did bypass the Low-pressure switch plug (by jumper wire)but still the same. Could this be a electrical problam? The repair guy can't figure it out. Please help me.

I did bypass the superheat switch on the back of the compressor. Then clutch engaged And compressor starts working, But after about 2 min Freon starts leaking from back of the compressor (A bolt looking valve, not from the refrigerant lines). Any ideas?
uj.








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    Help!!! 97 Volvo 850 T5, A\C dose not work S70 1998

    posted by  someone claiming to be chuck on  Thu Jul 24 07:25 CST 2003 [RELATED]

    well,

    I have a similiar problem with my A/C. I brought it to the dealer. Dealer claims that my fron is little bit low and need high and low pressor sensors. After replaced two sensors and recharge freon. My compressor still not work.

    I decided to jumper the A/C relay contacts. Compressor clutch engaged but squeaky sound and smoke came from compressor area. I imediately diconnect the jumper wire. Needless to say that my A/C still not working and I am losing faith in Volvo.

    I checked the A/C relay coil and there is no voltage across with the AC switched on. What seems to be the problem? Is my compressor toasted?







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