Question about 1997 Pontiac Bonneville

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Think the a/c has a leak. Put botttles of freon

Think the a/c has a leak. Put botttles of freon in but 5 minutes later it is not blowing cold air. It will blow cold air right after putting freon in but just dies off and its just alittle cool. This happens with the car at idle and going down the high way

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Deifinitely leaking...most likely spot is the condenser and accumulator..could also be at the compressor.

Posted on Jun 16, 2009

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Posted on Jan 02, 2017

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I have a 1996 Honda Accord and the other day I had put in on heat then later when I went to switch it back it's not blowing out cold air, its blowing like luke warm air. It's not hot and it's not cold. Can...


Could be low on freon, have a pro check it out unless you have the proper gauges. Or could be the low pressure switch is not working. System must be tested for leaks first then pressure checked. DO NOT just add more freon from a can you could damage the compressor or parts of the a.c.

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I got freeon put in my car and a day later it leaked out. i was told that freeon was leaking from my accumulator stem so i got a new one. then i was told that i needed a new compressor got one and filled...


Call the better Business bureau if you are in the states. if they havent fixed your system thats a huge issue at this point and you have rights.
But back to your problem. The evaporator is normally the first thing to spring a leak. If you are leaking freon there would be the first place to check. Add dye to the system and top it off making sure to have the UV flashlight ready. If the evap is leaking the dye should end up under the car as the condensor drains will empty there. Also check hoses and fitting.
Next get a can of freon with stop leak, a big can and add freon with car running a/c on full blast and keep the pressure at 35 psi as it cycles and drops pressure add more freon. this will take 5-10 minutes to get the system full. When the car is full the low side will read high like about 75 psi which is normal.
Only 1 problem tho if your system has had a bad leak and open to the air, the dryer should be replaced before you put new freon into it. That dryer takes internal moisture and keeps it from freezing in the system.

May 18, 2010 | 1984 Chevrolet Caprice

1 Answer

A/c is blowing hot air


Hi

Wel I am not a mechanic or anything, but i haev had some experience with aircons. The one problem might be that there is a leak in the pipes. 9 out of ten times the leak is where the various pipes join. you can simply take a spaner and tighten them otherwise the leak maybe where the compressor is. if the pipes were blocked then it will not blow any cold air and you said it did blow cold air for a while. the way to find a leak is take soap water in a spray gun and spray the soap water in on the pipes and joints, this should blow a bubble where the leak is. however this can only work if you have gas in the compressor. so fill in more aircon gas first.
hope i am right.

Thanx

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My ac does not work properly when I add freon the ac will work well for about 5 minuted then will blow warm air hoping some one could give me an idea what might be wrong, ie what to replace to fix it.


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Its a leak ...probably concealed like in an evap housing or rear air unit and lines (if it has that). Prob at this juncture I would remove all the freon and bring system into a vaccuum with a pump and see if it will hold vaccum for an extended period of time. A bad leak will not hold srong vacuum very long and much cheaper than wasting expensive and enviromental un0friendly refrigerants.

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