Question about 1994 Cadillac DeVille

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A/c short cycles

1994 Cadillac Deville
Has climate control. When you turn on the a/c, the compressor only runs for about 5 seconds at a time, a little cool air comes out of the vents. I put a guage on the low side to see if it needed a charge, it reads in the red about 100, when the compressor comes on it drops down to the yellow about 55.

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I had same problem, I took it to a shop, they said it was overcharged by twice the amount that it needed, so they sucked out all of it, and put the proper fresh amount back in. They said if i would have left it, that the compressor would have exploded, and ruined everything internally to the A/C system,

They also were troubleshooting my wiring for the short cold cycles, and after the first hourly rate of $95, I paid and left. But then I noticed they had it set at 65* but when I turned the electronic temp up to 70* it blew cold. So try turning up the temp a little bit to find what works for you with the A/C running to get it to blow cold.

Electronics, gotta love em

Posted on Oct 07, 2008

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Did you disconnect the battery to reset the a/c system?

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