a/c
Hey guys and ladies my 2000 Silverado's a/c works fine when I first start up the truck but once it cycles a few times the compressor won't kick back on. And when I jump it at the relay it still won't come on. But when the truck cools off it will cycles again .is there a sensor or something around the clutch
A/C cycles while the compressor is cool. But when it warms up it stops cycling . Any suggestions? I can feel the engine rpm raise up as if the compressor is coming on but then nothing. I hear a click around the compressor? |
Originally Posted by 1jimbo
(Post 430165)
Hey guys and ladies my 2000 Silverado's a/c works fine when I first start up the truck but once it cycles a few times the compressor won't kick back on. And when I jump it at the relay it still won't come on. But when the truck cools off it will cycles again .is there a sensor or something around the clutch
A/C cycles while the compressor is cool. But when it warms up it stops cycling . Any suggestions? I can feel the engine rpm raise up as if the compressor is coming on but then nothing. I hear a click around the compressor? |
the low side is between 35 and 45 and the hi side is 170 to 200 psi
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Originally Posted by 1jimbo
(Post 430230)
the low side is between 35 and 45 and the hi side is 170 to 200 psi
Is your A/C compressor continuing to turn over all the time? What kind of noise do you hear? The compressor has no switch (unless its an old R-4 Harrison, which I dont believe it is since those were discontinued after R-134A was introduced.) They supposedly needed R-12 mineral oil to keep the seal tight, yet I converted many to PAG oil/ R-134A with no issues at all.. ACDELCO 1522144A
does have a high pressure switch so might be the issue, Part "> does have a high pressure switch so might be the issue, Part " /> does have a high pressure switch so might be the issue, Part "> does have a high pressure switch so might be the issue, Part
ACDelco 15-50156. Could be an orifice issue as well, of course but unlikely. |
Thanks I put my meter on the connection at the compressor I have 13.70 volts as it cycles off 0 volts . But when it compressor warms up it gets the 13.70 volts but the compressor doesn't kick on after awhile I can start up the truck and it works fine again. I'm beginning to think the compressor is going bad.
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Originally Posted by 1jimbo
(Post 430237)
Thanks I put my meter on the connection at the compressor I have 13.70 volts as it cycles off 0 volts . But when it compressor warms up it gets the 13.70 volts but the compressor doesn't kick on after awhile I can start up the truck and it works fine again. I'm beginning to think the compressor is going bad.
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Thanks for info I noticed today that the compressor works fine but when I rasied the idol the compressor kicked off and would not come back on is there some kind of sensor im missing?
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2000 silverado 2500 A/C
noticed today while I was running my a/c that when I first start the a/c it will run fine.But when I revied the engine up the compressor
kicked off and would not come back on. I now wonder if the cut-out sensor is bad? HELP |
Originally Posted by 1jimbo
(Post 430307)
Thanks for info I noticed today that the compressor works fine but when I rasied the idol the compressor kicked off and would not come back on is there some kind of sensor im missing?
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2000 silverado 2500 A/C
my 2000 Silverado 2500 has a problem the pressure low side 45 and the hi side 200 .but when I get on the road the compressor kicks off and will not come back on. Even if I jump the relay the compressor it won't come back on.Something is not right can anyone tell me what the red cut -out sensor on the back of compressor? also is there some one who has a wiring diagram for the a/c.
Also I changed out the low pressure and hi pressure switchs HELP |
2000 silverado 2500 A/C
I have power at the compressor but the compressor will not come on. my pressures are 45 low 200 hi side.
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Another thing I make sure of is that the condenser coil is not clogged up with debris and that the fan is working properly that cools the condensing coil if it has an independent electric fan. On older vehicles the fan can seize up or the brushes can be worn down to nothing.
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Originally Posted by 1jimbo
(Post 430432)
I have power at the compressor but the compressor will not come on. my pressures are 45 low 200 hi side.
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