Question about 1997 Pontiac Grand Prix

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Ac blow hot compresser works and ac is charged

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  • 220 Answers

Sounds like heater conrtrol valve may be stuck open. Might be as simple as vacuum hose off or it could be problem in the A/C main control switch.

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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SOURCE: 1999 Ford F150 AC fully charged with freon is blowing hot air

there are few things you need to check out:
1. if the compressor is overcharged it will shut down and you won't get any cool air
2. the thermostat for your cooling system is bad
3. the link to adjust the temperature is too short (did you feel the switch loose when changing temperature from hot to cold)?
hope this helps.

Posted on Jun 06, 2010

  • 299 Answers

SOURCE: saturn ac wont blow cold air

check cooling fan operation while ac on.If fan is working proper,will probably have stuck exspantion valve.

Posted on Jun 18, 2009

Biggdex35
  • 333 Answers

SOURCE: The ac is blowing hot air the freon charge is good

Is the compressor kicking on? If not and the pressure is in the normal range then I would say that the low pressure switch is stuck. It is located on the canister right beside of where you hook up the freon. Unplug it and cross out the plug and see if it starts then.

Posted on Jun 11, 2010

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SOURCE: AC blows hot air but AC compressor works

if the compressor works and your freon is charged it may be the blower flapper door....disconnect battery for 10 minutes and then re-connect to reset the electronics that control the flapper

Posted on Jul 19, 2010

  • 1 Answer

SOURCE: AC blows hot air

my 2003 l200 did the same thing...ended up being a leak or hole in the ac line.
- thin metal and exposed to the elements will do that.

Posted on Oct 09, 2011

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