A/C cycling on and off
08-03-2005, 01:36 PM
#18
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Join Date: Jan 2001
Location: Orlando,Fl
Posts: 2,905
Re: A/C cycling on and off
Originally Posted by JDMZ28
Some days the compressor turns on other days it doesn't.
The charge is good.
On days that it does work, when the air is on max it gets cold then warm then cold then warm, like the compressor is cycling. I have a feeling its the pressure switch.
What are the possibilities?
The charge is good.
On days that it does work, when the air is on max it gets cold then warm then cold then warm, like the compressor is cycling. I have a feeling its the pressure switch.
What are the possibilities?
LT1 compressors do not "cycle" you need a new serpintine belt. Turn your car on and pop your hood, garuntee you see the belt sliping and kind of bouncing around. (flapping kinda)
08-03-2005, 01:39 PM
#19
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Join Date: Feb 2003
Location: Statesville NC
Posts: 1,109
Re: A/C cycling on and off
Originally Posted by '94 Bad A Z28
LT1 compressors do not "cycle" you need a new serpintine belt. Turn your car on and pop your hood, garuntee you see the belt sliping and kind of bouncing around. (flapping kinda)
All AC compressors cycle when there is a charge or pressure cuircut problem. It cycles to prevent damage to the compressor.
08-03-2005, 01:41 PM
#20
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Join Date: Feb 2004
Location: Leesburg, VA
Posts: 751
Re: A/C cycling on and off
Originally Posted by HBHRacing
again. one last time. you need to find BOTH pressures before can can diagnose ANY AC problem. If you don't you are simply going to be stuck guessing.
08-03-2005, 03:37 PM
#23
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Join Date: Sep 2000
Location: Novi MI
Posts: 491
Re: A/C cycling on and off
Its not the belt. Where do I check the pressure at? I'm not struggling with you, help me out please.
BTW, it acts the same way everyday now. Barely cool on startup. Cold, cool, cold, cool. Then after about 15 min its stays cold.
BTW, it acts the same way everyday now. Barely cool on startup. Cold, cool, cold, cool. Then after about 15 min its stays cold.
08-03-2005, 03:38 PM
#24
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Join Date: Jul 2004
Posts: 249
Re: A/C cycling on and off
Originally Posted by '94 Bad A Z28
LT1 compressors do not "cycle" you need a new serpintine belt. Turn your car on and pop your hood, garuntee you see the belt sliping and kind of bouncing around. (flapping kinda)
08-03-2005, 04:40 PM
#25
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Join Date: Feb 2003
Location: Statesville NC
Posts: 1,109
Re: A/C cycling on and off
Originally Posted by JDMZ28
Its not the belt. Where do I check the pressure at? I'm not struggling with you, help me out please.
BTW, it acts the same way everyday now. Barely cool on startup. Cold, cool, cold, cool. Then after about 15 min its stays cold.
BTW, it acts the same way everyday now. Barely cool on startup. Cold, cool, cold, cool. Then after about 15 min its stays cold.
you need to either take it to a shop or buy teh correct tools to diagnose the system. If you do it yourself you need a good set of manifold gauges so that you can read the high and low side pressures. Takeing pressure readings on both sides while off and while AC on will help to tell you whats going on. A decent set will cost you about 80 bucks. An AC check at a shop will cost you around 30. So it's really up to you on what you want to do.
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