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91 740 a/c relay?

posted by  m4ff3w on  Sat Apr 28 12:02 CST 2007
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last visit: Thu Apr 15 05:34 CST 2010
[RELATED]

Where is the relay for the a/c compressor clutch? My a/c stopped working last week.

I jumpered the LP switch but nothing happened, so I ran 12v to the clutch and it started right up.








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    91 740 a/c relay?

    posted by  rstarkie on  Sat Apr 28 12:23 CST 2007
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    last visit: Fri Oct 24 10:14 CST 2014
    [RELATED]

    Most likely the problem is in the control unit, read all about it at:

    http://www.brickboard.com/FAQ/700-900/HeatingAirConditioning.htm#AccesstoClimateControlUnit

    Randy








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      91 740 a/c relay? 700

      posted by  m4ff3w on  Sun Apr 29 12:45 CST 2007
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      last visit: Thu Apr 15 05:34 CST 2010
      [RELATED]

      Reflowed the solder joints, but still no a/c

      I guess I need to find a new control unit.








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        91 740 a/c relay? 700

        posted by  m4ff3w on  Sun Apr 29 16:40 CST 2007
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        last visit: Thu Apr 15 05:34 CST 2010
        [RELATED]

        Ok, I was wrong. When I put it in to just test, it didn't work. I went back later to button everything up for the drive to work in the morning and tried it again for grins and works it does.

        Yay! and thanks!







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