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Because something is wrong with it. Without actually diagnosing the problem, that's about as much of an answer as you can get to this question. I'd recommend you go to a service center and have them do an AC system performance test in order to diagnose the problem.
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∙ 11y ago
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Pontiac grand am air conditioning blowing hot air?
You may need to charge your a/c with coolant.
Where is the cabin air filter located on a 2002 Pontiac Sunfire?
The 2002 Pontiac sunfire does not have a cabin filter. The air flows freely either in fresh air or recirculation modes.
Where is the idle air control valve on a 2002 Pontiac sunfire?
Where is the fuel idle control valve for a 2002 Pontiac Sunfire
Does a 2002 Pontiac Sunfire have a cabin air filter?
no
Why is your 2000 Pontiac Montana blowing cold air?
You should check the thermostat and the fuse for the heater.
Why is your 1995 Pontiac Bonneville blowing hot air with AC on and ext temp is blinking?
low refrigerant charge?
2001 Pontiac grand am heater blowing cold air?
did you check the heater core because my truck did that and that was what was wrong
Where is the idle air control valve in 2002 Pontiac Bonneville?
The idle air control valve on a 2002 Pontiac Bonneville is located on the intake manifold. This valve allows direct adjustment to the engines idle system.
What is the fix for car's AC and heater fan not blowing air?
Is this a 2003 Pontiac Bonneville? I need this answered for this year and make.
Why are the Heaters are not blowing any air?
my 2004 Pontiac vibe will not blow heat nor air, worked fine this morning but this evening it quit and won't do anything..
Why would hot air instead of cold air suddenly start blowing from the front vents on a 2000 Pontiac grand am?
maybe the a/c needs to be recharged with freon
What the difference between 2000 Pontiac formula and a 2002 Pontiac formula?
Visually they are virtually identical, but the LS1 in 2002 had 310 hp vs 305 in 2000, and in 2002 you couldn't get the Ram Air WS6 package.
