Question about 1997 Cadillac DeVille

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AC air is only cool, how do you recharge the compressor?

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  • Cadillac Master
  • 2,005 Answers

You can buy a can or,refil kit of R-134-A at walmart however only put the freon in on the low side (read the directions) if the freon gas will not go in; run an 18 gauge wire from the battery to the compressor clutch switch to run the compressor if the freon gas still won't go in it must be evacuated and, recharged by a shop. only put in enough freon to get the system cold any more than that and, you will lose cooling again (over charge)

Posted on Jun 12, 2009

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6ya6ya
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Posted on Jan 02, 2017

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  • 834 Answers

SOURCE: air conditioning pressure switch /where?

The low pressure switch is located on the accumulator.

Posted on Apr 19, 2010

GM Elec
  • 1000 Answers

SOURCE: AC has stopped blowing cold air. Compressor is working. Where is the recharge valve located?

There are two A/C refrigerant lines. The small line is your high pressure line and the larger line is your low pressure line.
Start at the fire wall and follow the "large " low pressure line to the compressor. The low pressure charge port will be some where on that line.
DO NOT try to recharge on the high pressure side ( small line )
Good luck, let me know.
Regards,

Posted on Apr 26, 2009

greg_margo
  • 1959 Answers

SOURCE: the ac only blows warm air, have recharged it with freon but it only cools minutes before blowing warm again, could find no leaks

There are special cans of R-134A with dye in them for detecting leaks. Most leaks occur around the fittings near the compressor. Recharge the system with the leak detector can or R-134A. There are also cans of R-134A with an additive to stop leaks. I would use these products to either detect your leak or to stop it. Best of luck.
Greg

Posted on May 24, 2009

outdoorsman5
  • 631 Answers

SOURCE: ac not working on 2004 s430

If you have the hood up stand outside while someone activates your air off and on and see if the clutch on the compressor goes on and off while they activate the switch. If that isn't it the it could be improperly charged system or your climate control door that opens and closes for hot or air is not working properly and only stays on heat.

Posted on Jul 30, 2009

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