Question about 1997 Pontiac Grand Prix
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
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
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
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
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