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1991740 AC problems manual climate control not working 700 1991

posted by  Brokenvolvo on  Sun Sep 12 19:20 CST 2004
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last visit: Mon Feb 10 12:50 CST 2014
[RELATED]

ok lets see i have problems with my ac. i replaced the evaporator core cause it had a crack in it. i also relaced the receiver drier. I was able to find some r12 and had my friend who runs a shop fill her up. the ac was working but the ac was not blowing good cold air. why would it do that? their is the proper amount of freon just letting you guys know. Because the air was not that cold i was not using it for a while. then one day it got really hotand i wanted semi cold air and then the compressor would not turn on when i hit the little ac button on the MCC.
note the MCC ac buttons light never turned blue like my buddys 740 wagon
the only way to get the compressor to run now is jump start it by disconnecting the plug right next the block and connecting one end to the alternator. i tried by looping a wire to the reciever driers connection plug-in and nothing. When we first filled the car up i was able to jump the compressor on their however now not able to. Can anyone lead me in the right direction. do i need a new MCC or some relay? can someone please give me some help i live in sacramento and its about 100 degree's everyday. thanks
chris
camarojunky67@yahoo.com








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    1991740 AC problems manual climate control not working 700 1991

    posted by  D.P. on  Mon Sep 13 04:37 CST 2004
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    Agree w/ Steve. I had the exact same problem two years ago. Tedious job, but doable even for the soldering impaired like me. FWIW, get yourself one of those flashlights you strap on your head and a free standing magnifying glass, or better yet, a lighted magnifying glass. Makes the job a LOT easier.
    --
    D.P. Mulvey in Central VA. 1991 744 NA, 150K Miles








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    1991740 AC problems manual climate control not working 700 1991

    posted by  Steve on  Mon Sep 13 02:03 CST 2004
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    last visit: Fri Oct 24 07:16 CST 2014
    [RELATED]

    See the 700/900 FAQ for information about cracked circuit connections in the MCC, which can be easily resoldered.







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