Question about 1993 Cadillac Fleetwood

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A/C compressor stops when it gets hot. 1993 Cadillac Fleetwood Bro. 5.7 eng. Has been converted to 134 freon Freon checked shows correct amount and presure, with no leaks

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Are you sure your compressor can take that type of gas... If the compressor isn't designed for it then will cutoff as it cavitates..

Posted on May 29, 2010

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A/c compressor stopped cooling,clutch is engaged,is it possible to have too much freon in the unit,,


The system needs to be vacuumed down with a recovery machine and the proper amount of oil and freon added to ensure proper operation. The system most likely has air/moisture within it and will not function properly. Have it proffessionally serviced for adequate operation

Jul 05, 2015 | 1993 Mercury Villager

1 Answer

I have 1991 Cadillac Fleetwood and need to remove ac compresser


If the compressor locked up the chances there are metallic parts in the rest of the system are great. Flushing out the system is best left to professionals. If your system has not been converted from R 12 freon to R-134a freon, now's the time to do it. The oil in the R-12 system is not compatible with r-134a. If there is still freon in the system you cannot simply discharge it into the air.. The fine is huge. Have an AC shop do the work.

Oct 21, 2014 | Cadillac Fleetwood Cars & Trucks

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Have no power to a/c compressor for my 1993 turbo diesel non-power stroke f350. checked fuses they are okay. jumped hot wire and ground over from battery and the compressor kicks on.


You have either a bad pressure switch or your system is to low on freon. pressure switch is located near evaporator close to fire wall to check use jumper wire across the 2 terminals if compressor turns on add freon the chances are that the switch is ok. make sure to add the freon on the low side of system and use a gauge on the fill hose (the better fill kits have the gauge on the hose). If you get cold air out the vents and then after a bit it doesn't seem cold you have a leak in the system. Make sure to use the correct type of freon should have a sticker under the hood. I think it should be R-134A but make sure the sticker will tell you the correct type.
Thanks for using FixYa Hope this sheds so light on your problem

Jul 15, 2011 | 1993 Ford F350

1 Answer

Where do I get freon for my '89 DeVille?


Any good parts store can sell you conversion kit to convert it from the old stuff (Freon 12) to the new 134. You might still be able to find old stuff but it's outrageously expensive (and currently illegal)

Feb 25, 2011 | 1989 Cadillac Sedan DeVille

2 Answers

Where is the low side service port on a 88 caravan? Putting R-134A in


TAKE VECHICLE TO A GARAGE THAT DO AIR CONDITIONER WORK BECAUSE 1988 MODEL MORE LIKE HAS R-12 FREON. THAT WONT MIX WITH R - 134 REFRIGERANT THAT WOULD DAMAGE YOUR AC SYSTEM.

Jul 10, 2010 | 1988 Dodge Caravan

1 Answer

Is engine temperature badly affect AC compressor prformance ?provided that i bought a new compressor since 9 months but now stop function despite adequate fereon


It should not affect the A/C compressor. The A/C coils are actually in front of the radiator so the A/C should cool regardless.

Here's what you want the system to do. You want the Freon to maintain a steady pressure when the A/C is on. There are 2 pressure cutoff switches. 1high, 1low pressure. The compressor will cutout when either switch is tripped. This means a moderate amount of Freon is supposed to be in the system to avoid tripping the switches.

At this point your dryer tank will frost or sweat, the lines from the tank will frost too. The Freon can remove the most heat in this condition.

You can loan tools from Autozone or Oreillys with a deposit. You need to measure the pressure in the system and have the car windows rolled down and air on high to make it perform. Also use the correct "oil charge", the compressor will fail without oil.

Your compressor will not start if the pressure is below the Low pressure minimum. You may want to change the LOW pressure switch. If the compressor does not start, check the fuse or add Freon. The compressor will not run if there is too much pressure. Measure and remove Freon to cancel the high pressure switch.

When you have your pressure right everything should work providing the system was properly prepped before the Freon was added. Final note, the manifold gauges show TEMPERATURE variables for installing Freon. In simple terms, Freon is a gas that expands and if you add it in Cold weather it will expand and have higher pressure and be overfilled in Hot weather.

Apr 26, 2010 | 1996 Mercury Grand Marquis

2 Answers

What do I need to replace to convert my ac to r134a on a 88 chevy s-10 blazer


need to have the a/c system evacuated and flushed out with the appropriate cleaner.Replace the orifice tube and drier, and purchase a retrofit kit at any parts house. Recharge system with appropriate amount of oil charge and freon. It will take less R134a than it did R12.

Sep 03, 2009 | 2001 Chevrolet Blazer

1 Answer

AC air is only cool, how do you recharge the compressor?


You can buy a can or,refil kit of R-134-A at walmart however only put the freon in on the low side (read the directions) if the freon gas will not go in; run an 18 gauge wire from the battery to the compressor clutch switch to run the compressor if the freon gas still won't go in it must be evacuated and, recharged by a shop. only put in enough freon to get the system cold any more than that and, you will lose cooling again (over charge)

Jun 11, 2009 | 1997 Cadillac DeVille

1 Answer

Ac is blowing warm air in my 2005 sierra 2500hd duramax. Any idea


Your system has R-134 Freon in it. the 134 is made up of smaller molecules than the old R-12. The R -134 permeates through the rubber parts of the system. If the system gets too low on Freon, the compressor will stop coming on.(low pressure cut out switch). Have the system serviced with an A.C. machine that can vacuum, measure the amount of Freon in the system, and add the right amount. The machine can also inject die. Later the die will show up under a black light.This will show any leaks you may have.

May 23, 2009 | 2005 GMC Sierra 2500HD 4WD

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