Question about 2000 Chevrolet Blazer

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I have a 92 s10 with an ac problem the the clutch engages and it has freon i have checked the fuses all good and when i lead a jumper wire from the battery it acts like its working but nvr blows cold air

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  • Chevrolet Master
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A system can have some freon in it and not be totally charged. You should consider either just attempting to add freon or take it somewhere to have it evacuated and put on a deep vacuum for 30 minutes or more and put a full charge on it.

Posted on Jun 21, 2009

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1 Answer

Clutch on AC compressor will not engage on s10 Chevy pickup 92 2.8


Fuse, low freon or bad ac switch. (possible wiring fault too)

Jul 27, 2015 | AC Cars & Trucks

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Ac clutch won't engauge


Relay will not engage if pressure switch thinks freon is low. This switch does sometimes fail. If you are sure freon is ok, use jumper wire to bypass low pressure switch and see what happens.

Jun 24, 2015 | 2005 Honda Accord 2.4

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Location of ac relay 1996 S10


My Chevy S10 AC clutch is not engaging... new compressor and dryer and hoses...new relay fuse in engine compartment...could putting more freon in help it engage?

Apr 09, 2012 | 1996 Chevrolet S-10 Pickup

1 Answer

Compressor isnt turning at all dont know if i need new one or if i need new clutch how can i tell


The pulley on the compressor is always running when your engine is running, but the only time
it compresses the freon is when the clutch engages, if the compressor's pulley was not turning,
it would have already snapped a fan belt or your serpentine belt. voltage runs from your fuse box
thru your air condition switch on your dashboard to a low pressure switch that is located at the
accumulator a long cylinder,close to the firewall under the hood or close to the condensor, front
of the car. the switch detects freon pressure in the accumulator, if there is freon pressure, the switch
will stay closed and allow voltage to go to the compressor clutch to engage it and compress the freon,
if there is no freon pressure the switch will open, and there will be no voltage to air compressor, its a
saftey switch to keep your compressor from getting damaged.its possible that the switch could be bad
it may not have voltage at the switch, or it may be open because there is insufficient freon pressure.
check and make sure there is freon in the system.check for voltage at the low pressure switch if you have freon in your system and voltage at the pressure switch, set your ac on high, pull the molex off
the switch, and jump it out with a jumper wire, if the clutch engages and your car starts to cool, just
replace the switch. if the clutch engages but does not cool, then your ac system has some blockage
in the lines. if the clutch does not engage at all then it would be the compressor clutch. good luck!

Aug 03, 2011 | Buick Century Cars & Trucks

1 Answer

I have a 1998 chevy cavalier, I was driing and the AC was working. I stopped and when I started teh car again a couple hours latter the AC was not working. The fuses are good and the comressor and dryer...


Did you check the AC relay? Usually located under the hood, try swapping it with another relay with the same part number that isn't required to run the vehicle. If the AC now works, then replace the relay. If not , then verify compressor operation. With the engine running, watch the compressor clutch while someone else turns on the AC control. The clutch should engage and begin to run. If not, then find the pressure cycling switch usually located on the accumulator. Disconnect the harness and jumper the contacts. With the engine off and the key turned on , turn the AC control on. You should now be able to watch the clutch engage and disengage by removing and replacing the jumper lead. If it does, then replace the switch. I hope this information is helpful. Thanks for trying Fixya.

Jul 04, 2011 | 1998 Chevrolet Cavalier

1 Answer

Got a 1999 Buick Century, AC stopped working so I filled up the FreOn and it didn't make a difference. Checked all Fuze's and Relays (to the best of my ability) still no change. There are no knobs, it...


Can't see filling with freon without compressor turning. Put jumper wire on high/low pressure switch harness to see if clutch engages. If so, bad high/low switch. If not,check power to high/low harness via fuse,relay, or dash control.Battery voltage applied to compressor if accessible will also engage compressor clutch and read your low side with your fill gauge. 30-35lbs is good

Aug 12, 2010 | Buick Century Cars & Trucks

2 Answers

A/c has full freon but the compressor clutch wont engage. i have found that the plug going into the compressor is not getting any power. what could be the problem?


On the low pressure line of the ac you have a pressure switch which allows the compressor to come on once a certain pressure is reached, and it will cut the compressor off if the pressure is too high or too low. Look at your ac hose and find the switch *you will see wires connected to it* you may need to replace this switch. You can use a test light to see if you are getting power to the switch. You should check you fuses, and the ac relay witch is usually in a black plastic box under the hood.

Aug 10, 2010 | 1997 Ford Crown Victoria

2 Answers

Ac clutch will not engage


If it has plenty of freon in it, I would say the low pressure switch is bad.

Jun 13, 2010 | 1998 Chevrolet K1500

2 Answers

How to restart the AC compressor


Unhook the battery for 1 minute.

Jun 28, 2009 | 1997 Mercedes-Benz C-Class

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