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Theres a switch missing on my compressor what is it?

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Air Compressor?
Vehicle Air Conditioning Compressor?
You got nothing here,no vehicle,no idea
what your referring to,how do you know something
not there if you don't know what it is?

Posted on Jul 18, 2013

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Posted on Jan 02, 2017

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1 Answer

How much oil is added to new compressor


it usually says it on the side of old compressor, if not empty all the old oil out of old compressor and go by that, if theres not much that comes out or if theres none, most hold about 2-3 oz. but i suggest you look up the proper amounts.

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How to add coolant if comp. shuts down automatically


the system should still take the freon in even if the compressor is not running it is ture it takes it faster with the compressor running but should still take it and when theres enough freon to close the low preasure switch the compressor will turn on unless there are other problems. if you would like to turn on compressor to charge faster just locate cycling switch on passengerside on the dryer, this is the aluiminum can unplug the connector from the switch and jump the connection on the plug with ac on the compressor will turn on if it does not then there are other problems with the system.

Jul 10, 2010 | 1998 Cadillac DeVille

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Air conditioning compressor not getting power on 96 Chevy Tahoe


Freon is what you are missing, our more specificly a refigerant charge that exceeds 45psi on the low side pressure line. This system has two pressure switches, a high side cut-out switch mounted on the rear of the compressor, and a low side or pressure cycling switch on the suction line.
Jump the low side switch contacts to ensure the electronics are sound for this system. If the compressor cycles, you know the system is low on a refrigerant charge. Turning on the AC is a request, and certain criteria must be met before the system operates as designed. Good luck

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IS THE SYSTEM CHARGED UP, NO CHARGE NO AC COMPRESSOR OPERATION.

Nov 05, 2009 | 1997 Buick LeSabre

1 Answer

Ford crown victoria ac not working. need help to centralize on the problem - compressor does not engage


If the compressor doesn't engage..it could be the pressure switch and or it could also be low in a134 to the system.
Best would be to jump the clutch wire from the compressor (i.e. direct tht wire on the positive terminal or any nearest available 'live' point).
Let the car's engine run and also the AC control switch to "ON' postion having the blower fan inside the car running.
Once done all this check if the compressor is now running and if theres cooling inside the car and also best would be to check the sight glass for any bubbles , this is normally situated around the filter/drier at around the condensor infront of the radiator or within the area.
If the compressor runs and theres cooling thn theres a problem with your pressure switch, if theres low cooling thn you may need to recharge the a134 and run a leakage test.
Hope this helps!

Aug 23, 2009 | 2003 Ford Crown Victoria

1 Answer

My 98 burban ac wont work.compressor is new dont here it engage wires are good fuses and relays good .theres enough freeon in system. im baffeled


hi,
you can try and jump the high pressure limiter switch on the expansion tank, sometimes they get a bubble. Its the silver cylinder looking thing near the firewall. follow the cooling pipes from the compressor back to the tank if theres a question, on the top or near it will be two wires going into it, undo that switch housing connector and hook a jumper wire up there. switch may have to be replaced there. dont run that for any length of time with the jumper, just to diagnose.
good luck
J

Jul 21, 2009 | 1999 GMC Suburban

1 Answer

Power to a/c unit


if theres power to all the sensors and to the compressor and it has been re-gased with the correct amount of gas then provide a 12v suply to the compressor to see if the clutch works if this fails the coil in the compressor is proberly faulty

Jun 22, 2009 | 1997 Jeep Grand Cherokee

2 Answers

A/c fan blows, but compressor does not come on. Freon not low. All fuses ok. No voltage


theres a switch on the drier called low pressure switch it usually goes bad and doesnt allow power to go to compressor to test it unplg it and jumper the two wires togather. if it works theres your problem

May 05, 2009 | 1999 Chevrolet Suburban

2 Answers

2004 rav4 Air con compressor rins for 1 second then cuts out.


With the new pressure switch, you may have found a new problem, it sounds like your compressor may be going off on high head pressure, or something similar like a clogged line. That is about the best thing I can think of unless the compressor itself is having internal problems. If its cooling, then it may be a temp sensor on your coil, or line if you have one.

Feb 14, 2009 | 2004 Toyota RAV4

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