Question about 1991 Buick Park Avenue

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Air conditioner not working properly

Mechanic pressured out the lines and put the proper air in. The fuses are good and so is the relay. My a/c is not cold enough what can it be?? a plug connected to the accumulator line has no power can it be that but what do I change ? Is there a fuse or relay connected to the line? Do I flush the radiator??????? thx Hilda

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  • yadayada
    yadayada May 11, 2010

    If he put air in the AC there is the problem, did he really do this?

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Get someone who is qualified to work on A/C. If the person that did the work on the system was up to it; he/she would have been aware of the type of tests that are needed to resolve this problem. At this point you need someone that is Certified in A/C.

Posted on Oct 15, 2009

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Why does it start on ether but will not run without it?


Because it is not getting any fuel! as soon as the ether burns up if no fuel then it quits. check all fuses and relay for fuel pump. to check fuel pump to see if its running. have someone turn the key to start, while somebody is under car at fuel tank. hold hand on tank, if it works you will feel the vibration from pump. most relays for fuel pump are in under hood fuse box. a fuel pump if good, will only run a few seconds to build up pressure in line. when engine starts it runs continuously. so you may have to turn key on a few times. Good-Day!

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Is there any product, electrical code reader, diagnostic product that i can hook up to my 1996 avalon xls that will tell me what fuse, relay or swictch is causing my air conditioner to not work proper


have an a/c mechanic look at the system as there are 2 switches in the system that control the compressor operation. controls over pressure of the system and the other covers low gas in the system. both control the compressor relay that engages the clutch of the compressor. Check for a fuse problem in the power line to the a/c switch in the dash

May 25, 2013 | Cars & Trucks

1 Answer

Air Conditioner Problems


you may have had an electrical problem all along and now you've added Freon on top of a full charge which isn't good. put the gauges on both the high and low side. and see if you are charged or low or overcharged. the compressor can go out on high pressure or go out on low pressure. I am not sure which you have. thwere are relays that come into play when the charge is high enough to satisfy the low pressure switch. the relay is in the power distribution box under the hood. there is also a fuse under dash for the ac

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Hi have an 04 hyundai tiburon i dont know where to locate where to put freon for my aid condtioner


STEPS TO CHARGING YOUR CARS COOLING SYSTEM:

STEP 1) Look under the hood of you car on the left side of your cars engine. There should be two stainless steel lines coming from a stainless steel cylinder to your cars compressor. The two lines have plastic dust caps on them sometimes they are blue or black. Usally the black has the larger diameter tubing that runs between the evaporator and the compressor. This will be the port that you hook the refrigerant hose up to.

STEP 2) Start your cars engine after you have secured the hose hook up to the air conditioner line port. Once the cars engine is running, turn your cars AC on to Max cool. Shake the can of coolant well. The gauge on the can of coolant should read in the blue but if it is in the green your air conditioners pressure will be between 0-25 pounds per square inch. This means you will have to add refrigerant to the compressor.

If your cars air conditioner pressure is in the blue. The system has the proper amount of refrigerant and you do not need to add. If the gauge reads in the yellow you may want to seek professional help because refrigerant is not what is wrong with the unit and is probably something more technical and most likely something that you do not want to attempt to do on your own. The red on the gauge means do not add any refrigerant at all and to seek professional help.

STEP 3) If the pressure of your air conditioning system is in the green it means it is safe to add the refrigerant. You should wait for your air conditioning compressor to switch on before squeezing the trigger to add the coolant. When the compressor switches off then release the trigger and repeat until your pressure gauge on the coolant can says that the coolant is in the proper range. If the needle on the gauge is in the top part of the blue you have successfully charged your cars air conditioning unit.

STEP 4) Release the attachment from the tubing port and replace the dust cap back in it's proper place and you are done. The cars air should be cool and your compressor should cut off and on less often. If problems persist you should consult a mechanic or someone that has experience with air conditioning systems.

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1 Answer

My air conditioner is putting out cold air for a few minutes then it's warm for 5 minutes and then it's getting cold again? I had the compressor changed by a mechanic who wasn;t sure how much freon it...


OK, the requirement of Freon is 2 cans...as for the Cold/Hot problem, a little info first; the PCM controls the AC clutch (adjusts the IAC, Idle Air Control valve to speed up the idle when turning on the AC unit, and slows down the idle after turning off the AC unit), also the PCM controls the relay that cycles the AC clutch. My experience has been that the relay is "going South". This bad boy is in the fuse block in the engine compartment by the Air Filter box. The relay is an inexpensive item, and if you live where the AC unit is used frequently, I would recommend it being replaced every 3-5 years. Be sure to check with the mechanic to make sure he properly recharged the system, and if so, try these ideas.

Jan 18, 2010 | 1996 Saturn SL

1 Answer

There is no juice to the wire on the clutch when the engine is running and the interior buttons are on air conditioning how can i trouble shoot the problem the air conditioner clutch does not engage to...


most likely a low refrigerant condition and the pressure switch is telling the computer to shut it off so not to damage the compressor! check to make sure it has the proper amount in it! if it does check all fuses and the relay! i would jump the relay out to see if the compressor circuit is good and if so then it''s something from the relay to the computer. good luck

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Air conditioning 1996 Ford Explorer


You were not clear, but I assume the compressor runs OK. If not, troubleshoot the electrical to the compressor. Did you replace the orifice tube while it was discharged for service? If not, then check the pressures. If low side pressure is high the tube might be plugged, especially if you truly had a bad compressor. In a properly working system the line should be cold on the evaporator side of the orifice tube when properly charged. If compressor runs, system properly charged and that line is warm then suspect a plugged tube.

Jun 30, 2009 | 1996 Ford Explorer

1 Answer

Heat coming out of vents when a/c is on


check to see if compressor on.if not check the relay and fuse.if fuse and relay is good and power is going to compressor. and compressor not working.compressor clutch coil open.or accumulator or expansion valve -orifice tube screens stopped up.

Jun 08, 2009 | 1998 Lincoln Navigator

2 Answers

My 96 grand prix's air conditioner compressor will not turn on when the switch is activated. I have replaced the large fuse under the hood but that still hasn't solved the problem. The indicator light on...


that light goes on mostly likely cause you need freon. the compressor will not go on if there is no freon. buy a userfriendly can at autozone. put it in low pressure valve(blue)  if it works but no cold enough air check under your hood for the proper pounds or ounces needed of freon.  if it doesnt work its your compressor.  GOOD LUCK! :)

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1 Answer

Fuse blows when air conditioner is turned on


there is a loose ground and or wrong size fuses for the air
if loose ground you will want to have a certified mechanic trace the grounds back to source
i dont think it could be relay but there is a way to check this
find the relay panel in the engine compartment open it
find the relay that says air conditioning
pull it out
now there are numbers on that relay
in that same relay box theres relays about 6 to 8 of them that look similar to the air conditioning relay
this is where the numbers come in if the numbers match switch with other relays
mark the air conditioning relay with black marker or nail polish so you know which relay is which
if its the relay thats bad the new relay from the relay box put in its place will work fine
put the old one back in the slot where you took out the other relay out of and then proceed to dealer to purchase new relay for your vehicle if the relay was the problem

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