Compressor runs all the time

Springer · Posted: Fri Mar 19, 2004 6:49 pm Post subject: Compressor runs all the time

The A/C compressor on my 86 Silverado (not my 68 El Camino) cycles on and off even when the control lever and the fan switch are in the off position. The system blows cold or hot as selected, but the compressor runs even if I select "vent" under "economy". Any ideas as to what is the matter? Thanks in advance.
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Black Knight · Posted: Fri Mar 19, 2004 7:20 pm Post subject:

ask "acauth1"........he will know

I wish he would come work for me, but he likes it better in Texas

I've got a good idea of what he would say, but I am not going to post anything that would make myself look stupid Razz

Springer · Posted: Sat Mar 20, 2004 9:33 am Post subject:

Thanks, Black Knight, I will. BTW, I was born in Greenville, SC. Rode my Harley to the HOG national rally there in 1999 and really enjoyed the South Carolina scenery. My parents left Greenville with me when I was 3 months old. That was the first time I have ever really seen South Carolina, much nicer than West Texas! Happy

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L-30 327
NECOA #347
ACES #309

acauth1 · Posted: Sat Mar 20, 2004 2:58 pm Post subject:

You either have a bad selector switch in the control head, or a wire shorted to the clutch or pressure switch wiring sending voltage to the clutch at all times. Gain access to the back of the control head and unplug the selector switch, if the clutch turns off replace the selector switch. If it stays engaged, you have a wiring issue.
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El Camino Central Founder/AdministratorAuto A/C & Electrical Shop Owner, ASE Master

Springer · Posted: Sat Mar 20, 2004 3:16 pm Post subject:

Thanks, Robert, I appreciate the help! Wish I would have known that when I had the dash apart when I replaced the dash panel and radio! At least I know how to gain access to the back of the control head! Not a fun job! Laugh

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L-30 327
NECOA #347
ACES #309

Black Knight · Posted: Sun Mar 21, 2004 12:25 am Post subject:

see, I would have only half guessed it, that guy is sharp Cool

Next time ride that Harley to Mertyl Beach Bike Week, it is a big deal, as big as DAYTONA(almost).....we could have a beer, and talk about kidnapping acauth1 and use his brain for science(moneymaking car science)

Springer · Posted: Sun Mar 21, 2004 3:06 am Post subject:

Sounds like a good plan Black Knight! I know about Myrtle Beach Bike Week, May 7-16 I think. It'll have to be next year, though, I'm going to Florida this year about that time for a 1st Air Commando Wing reunion. Budget, you know! Cool

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L-30 327
NECOA #347
ACES #309