Question about 1993 Ford Thunderbird

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My AC compressor cycles on/off 1993 Thunderbird

I charged up my AC and the compressor kicks on an the pressure drops and it kicks off when pressure builds up it kicks back on the auto parts store says there is a filter in the system that my need to be cleaned where is this filter?

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I'm believe he's talking about a dessicant bag. That year didn't have it. sounds as simple as a bad clutch cycling switch. that's the way a bad one on fords act a times.

Posted on Sep 03, 2009

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Ac works but when compressor cycles, it wont come back on until i rev engine to 4500 to 5000 rpm's and compressor kicks back on until it cycles again. i have to repeat reving engine every time com


you need to check the pressure of the system if the system is a little low on freon it will cycle more also if the cooling fan is not working the pressure will raise and also shut off

Aug 17, 2012 | 1997 Nissan Pickup

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I have a 2001 Ford Mustang V6, the ac is blowing warm air. We checked the refrigerant and it is full. The ac compressor will kick on for a few seconds and then kick off. Why is the compressor not staying...


it's either low (in spite of your readings) or your a/c clutch is not working correctly or you have too big an air gap in the clutch.
First, just disconnect the 2 pin connector from the a/c pressure cycling swithc and jumper the 2 pins with a wire to force the clutch to stay engaged. See if it blows cold then, and stays engaged. You can run this way for about 15 minutes before you have to pull the plug.
report reulsts.

please don't forget to rate.

Sep 01, 2011 | 2001 Ford Mustang

1 Answer

Compressor on my 2004 Trailblazer went out and I have replaced it but it keeps kicking on and off. What could be the problem?


the compressor kicking on an off is normal...pressure builds up in the a/c system then the high pressure switch will cut off the compressor, when the pressure drops the switch will turn the compressor back on...but if the system is to low on charge or to high on charge the comperssor will cycle on an off at a much faster rate that normal...bring this to a quailfied a/c repair shop an have the pressure readings taken, this will tell if it is low or high on charge an may also find another malfunction in the system such as a orafis valve which can also cause this especally if u had a compressor failure there may have been parts of the compressor forced into the a/c system causing a restriction in the system

Jul 15, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

How do you add the 134a to a 1997 chevrolet lumina?


Go to wal mart $6.00 a 12 oz can,may need 2 cans. Car owners manual will tell capacity in oz of AC system never charge over that amount into your system, also PSI and ounces are not the same thing

Go to auto parts store buy R-134a charging hose kit with a gage built in.$ 10.00

Turn engine OFF Under the engine hood, is a large aluminum cannister usually on passengers side ,on it or on a hose coming out of it will be a black plastic cap,with a connect fitting under, remove cap, pull and hold back the locking ring on the charging connector and push on fitting. look at gage it will show how much freon pressure is in system, with engine and ac off a higher pressure value will be on gage Start engine and turn ac on cooldest and fan high. The pressure will drop. if the pressure drops below about 22 PSI the ac compressor will stop automatic by the low pressure cut out switch.then the pressure will build above 25 and the compressor will engage again, this is short cycling(no/off) on the low pressure sensor and is a good indicator of a low charge of refigerant(R-134a). Charge according to instructions on kit. When the pressure stays above 28 and the compressor stops cycling off your good DO NOT over charge or you can cause compressor slugging. Liquid into compressor($1200.00 for new compressor)
SAFETY!!!!
R-134a can cause blindness. wear goggles and gloves

The "O" ring seals in the ac system dry out when the ac is not in use for over a month and leak the refigerant out again, So Use your defrost setting in the winter because it runs the ac compressor for dehumidifying, but only after the engine has warmed up a little, or with no warmth from engine the defrost will blow freezing air.

Patrick Mot

Feb 11, 2011 | 1997 Chevrolet Lumina

2 Answers

The AC on my 93 Buick Park Ave used to blow ice-cold. About a week ago it went out, and so my husband charged it. Yesterday it was out again. We got a freon/stopleak/leakfinder to put in, and the AC...


sorry it has a leak ,only way to fine it is to use the correct machine and vacumn it out ,then turn machine off and listen for a sucking sound ,most likely cause is the flexible hoses/compression fittings or the seal on the front of the AC compressor ,if you still cannot find the leak then fill AC with a special dye and use a ultra violet light and yellow glasses to find the leak .

Aug 10, 2010 | 1993 Buick Park Avenue

3 Answers

1993 Volvo 850 AC


There can be several reasons for this, easiest would be a loose wire at the compressor or a pressure switch.

If it clicks on and off it is likely over or under charged. There are safety pressure switches that will turn the compressor off if the pressure drops under approx 50 psi on the low side or approx 300-400 on the high side, it varies with different vehicles.

If the system was charged properly you are probably looking at a restriction somewhere in the system (accumulator, orifice tube, evaporator, condenser, txv etc.)

Jul 25, 2009 | 1993 Volvo 850

1 Answer

Power to ac clutch fuse no power at clutch on 03 leSabre


If your AC system is otherwise operational, it may just need to be charged. The compressor will not come on unless there is sufficient charge/pressure in the system. So, first thing to check is the amount of charge in the system. You can purchase a gauge , similar to a tire gauge, that will give a reading of the system's charge. The gauge hooks up to the low pressure side ,or the larger diameter hose/line, same as where you place the re-charge hose. Again, if the system is operational, as you charge it, the compressor should kick in. At first, it will cycle on and off until the system reaches sufficient pressure.
Hope this helps...

Jul 16, 2009 | 2003 Buick LeSabre

1 Answer

A/c wont come on


have the system charge checked, the system waring is activated by this condition in most cases, u can confirm that by putting a jumper wire across the low pressure AC compressor cycling switch located in the low pressure line from the compressor near the accumulator.

Mar 25, 2009 | 2000 Saturn SL

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