Question about 2002 Chevrolet Impala

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Air conditioner wont work if outside temp is over 70 97 chev pick-up it works great in temps remain cool outside any help would be helpfull.

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Sounds like you are low on freon and as it gets hotter outside your AC system can't keep up. Check into getting the system charged and that should take care of it for you. Thanks for rating my response and for using FixYa!

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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What temp should a/c be in 1995 chev on max


Hard to say.
Under normal conditions, vent temp should be about 20 or 25 degrees less than outside air temp.
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If outside air temp is 70 degrees vent temp will be around 40 - 50.

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2000 NISSAN 4X4 P/U A/C SYSTEM WILL BLOW COLD WHEN OUTSIDE AIR TEMP IS COOL, WHEN HOT OUTSIDE AIR BLOWS HOT.


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Hi ruswashingto,

The air conditioner may not work properly if your ambient temp is reading -40. The a/c control unit monitors ambient temp so that it does not operate at too low outside temps. I would recommend fixing the ambient temp sensor and rechecking your a/c operation.

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Hello, I have a 1994 toyota 4runner and everything works great except the air conditioner. Sometimes it works and others do not. I wonder if this is common in this model and if there is a possible cause...


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May 20, 2010 | 1994 Toyota Camry

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I have a 1999 Volkswagon Passat. The air conditioner works great at night or when the outside air temp is below 80°; it will put out 55° air. But during the day it will only put out 10°...


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1 Answer

Air conditioner doesn't work when the outside temp goes up


You need to take it to a local shop and have the freon level checked. It sounds like the compressor is cycling to much on the hotter days and is not running long enough to cool down the low side. this is mostly caused by low freon levels and with this type of system with an expansion valve is common. this is not a costly fix unless you have a bad leak or blockage.

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Heater


First you have to make sure there is colant in the radiater to heat up...if full of coolant,try replacing the thermostat....very easy and cheap try...then make sure no air in system after filing,warming up vehicle,and shutting off a few times to work air from system...if there is still no heat and truck is running at temp(Aprox 200 degree) you may have a blocked heater core,and this can be cleaned by backflushing heater core..take both small hoses off of engine and water pump and run a garded hose through it both ways....good luck..Lee

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2 Answers

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my 06 jetta did the thing. I fixed it by replacing the outside temp sensor. Turns out the air only works if temps are over 45 degrees. My outside temp sensor had gone bad. sensor was around $11.00 and I had to re-wwire it in because the original one had corroded. air has been working great sense.

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