Question about Chevrolet Impala

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I have all new parts for my ac. there ar eno leaks the compressor works fine.the problem im having is i cannot get it to come out cold.its coming out threw the floor n the air is hot.i no its a vaccum problem but why doesnt the a c work correctly

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If you have a vacuum problem the system wont work correctly becauce the blend door or other doors that control by the vacuum either stays close or open. you need to fix the vacuum to enable the doors working correctly inside the a/c houseing

Posted on Jul 22, 2009

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Recharged AC, blew cold for 1 day then heard hiss near driver tire and now no cold air.


Whenever you add Freon,you are suppose to leak test first.Your compressor is good,you have a leak somewhere.A good place to take it to is Midas,they changed my freon over from the old stuff to the new R-134a,they leak test it first,that is rule 1 when adding freon.

Jun 11, 2015 | 2000 Pontiac Grand Prix SE

1 Answer

AC not cooling


IF you had the system re-gassed and it worked fine for a while then there is a leak in the system. Leaks occur at the compressor seal behind the pulley ( repairable ) in pipes and fittings and in the evaporator and condenser ( corrosion holes from acidic process when there is moisture in the system from running without gas.) Unfortunately the only fix for this is new parts . There is a uv light and yellow coloured glasses that show up the leaks as a green dye, so have this done first to determine the degree of cost before you commit

Feb 09, 2014 | 1997 Buick Park Avenue

1 Answer

Ac compressor not coming on


The first thing you need to do is have the AC system pressures checked to see if you are low on charge, it may have leaked out the front seal of the compressor, which is common cause of loss of charge.

Sep 14, 2012 | 1994 Chevrolet Camaro

1 Answer

My ac was blowing fine and cold until my ac compressor went out. i bought a used ac compressor wit new dryer/accumulater, and orfice tube. i had that for awhile and i replaced it again because the air...


If the car was retro fitted with R134a this was a common problem. There was a low side pressure sensor that needs to be changed. R134a runs different pressures than the r12.. When you go down the road the condenser cools off the system and the pressure drops below the minimum pressure. You need to make sure that the system is fully charged, not just cold to the feel. Both pipes coming out of the firewall need to be the same temp. this makes sure that the evaporator is flooded.
I hope this helped. Re-post if you need more info. Have a nice day and good luck.

Jun 06, 2011 | 1993 Cadillac Eldorado

2 Answers

AC does not blow cool or cold air. Fan works fine heater works. Filter and fluid levels have been checked.


Does your compressor cycle on and of. It should cycle every five minutes or so. You should see the clutch engaging or at least here it when it does. If not you have one of two problems. A bad compressor(bad clutch, ceased compressor piston, ((or bad cycling switch))) or your system has a leak. Now ac system have a bad habit of just being fickle. The leak could have fformed anywear in the system. Most common places are the shrader valves in the high and low side service ports. these ports are usually located on the alluminium lines or near the compressor. leaks will also commonly form as a result of old and dry o-rings. I would suggest finding your high side port and test bleed it. Do this in an open and well ventilated area. cover your nose and mouth with a wet rag and avoid breathing in any freon that may be expelled from the system. if no white mist comes out then the system is dry or at low pressuer. You can buy a leak detection kit from your local parts store. I hope this info is helpful.

Aug 21, 2009 | 2005 Kia Sportage

2 Answers

AC wont blow cold air/ 1996 dodge grand caravan es


the control module is bad it has an intermittant fault replace this and it will work fine

Aug 17, 2009 | 1997 Dodge Caravan

1 Answer

AC not blowing cold 1996 Lincoln Town Car Presidential


i would try www.car-part.com its a nationwide junk yard inventory site theres some great deals there for domestic cars.try to replace the wire conectors at the compressor maybe the freon shorted them out.

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2 Answers

No cold air when A/C on but climate control works in controlling heat


the first check to perform is to see if the compressor is cutting on.... you should be able to hear the engine struggle a bit when the ac is first cut on, or watch the clutch (built into the compressor pulley) begin to spin when the AC is switched on. If it does cut on, likely causes include refrigerant leak or internal system failure. If the compressor is not cutting on, it is a control issue, and some electrical tests must be performed.

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2 Answers

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You can install the parts I am sure without professional help, but you will need to have the system pulled down with a vacuum pump to remove all air and moisture, also u will need to replace the accumulator/drier canister an the fixed orfice. always use new seals, never reuse old seals, if the AC has been contaminated flush it with AC flushing fluid, if u don't the new/rebuilt compressor will fail, also if the accumulator is not replaced the AC compressor warranty will be voided, so keep the receipt's

Feb 11, 2009 | 1998 Jeep Cherokee

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