Question about 1995 Chevrolet C1500

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I tried to charge the air conditioner on 95 suburban. it doesn't act like it wants to charge. the compressor keeps cycling on and off so can't get a good read on the pressure.

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  • ostate23 Jun 16, 2009

    no i don't see one. I haven't had the truck long so not sure how it worked last year. when i start it and turn on the air the center of the fly wheel on the compressor turns then shuts off after 2-3 seconds. this causes the guage on the freeone can i am using to drop way low, then when it kicks off and stops spinning the pressure shoots back up on the gauge. i tried to shoot a little freeone in the line but it started to squirt a little out of the hose coupling.

  • ostate23 Jun 16, 2009

    No i just got a can of recharge freeone from walmart to put in it since it wasn't blowing cold and i could here the compressor coming on. figured it was just low on freeone.

  • ostate23 Jun 16, 2009

    ok the kind I got has oil and leak sealer in it. should i get a can of just oil then and try that?

  • ostate23 Jun 16, 2009

    ok will get some and try it. do you have any recommendations on any particular type?

  • Greg Margossian
    Greg Margossian May 11, 2010

    Does the AC service light appear on the dash?



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The system could be low on oil. The compressor will shut itself down if it detects a lack of oil or refrigerant. Try adding compressor oil (comes in a can similar to the R-134A) to see if the compressor will stay engaged long enough to accept a charge. It's also possible that the system has so much air in it that it needs to be evacuated before refrigerant can be added. I'd try to add the oil and see if you have better sucess adding refrigerant REMINDER: Have AC on HIGH when adding refrigerant with car running

Hope this helps with your AC problem. Please post back with any other questions. Best of luck.

Posted on Jun 16, 2009

  • Greg Margossian
    Greg Margossian Jun 16, 2009

    Yes, I'd get the oil by itself. If the system won't accept a normal charge, it can't get the oil from the can you're trying to add.

  • Greg Margossian
    Greg Margossian Jun 16, 2009

    Any brand specified for R134A AC systems should work. There are some with the UV dye in them that cost more but you already have that in the refrigerant so I wouldn't bother with those. I've also come across a web page with some useful information you might like to see.


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  • 26 Answers

Did you pull a vacccum on the system first before trying to charge it? ps.dont forget to add specified oil for the compressor

Posted on Jun 16, 2009

  • myimpala1965 Jun 17, 2009

    go with greg margo he's got it in detail i left out sorry!



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