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The defroster vents might be plugged, but I imagine you've already checked that. It's probably a problem in the HVAC system like a loose or broken wire or a loose or cracked hose. It sounds like you might have to pull the shrouds or panels off from around the heater/ac controls to get at them, then remove, inspect, repair or replace. You should probably pick up a Chilton or Haynes manual to help you through this. let us kow if you need more help. FriPilot
What else can I help you with?
How do you remove shift console on 2003 Pontiac Sunfire?
i wont to change my shifter but cant take off old one
Headlights in Pontiac Sunfire will not turn on?
headlights and dash lights in 2001 sunfire wont turn on.
Where is an online owners manual for a 2003 Pontiac sunfire?
probably wont find one. closest your going to come is a website to order a replacement.
How do you replace the trunk latch on a Pontiac Sunfire?
it seem to be the trunk plastic is broke and I have brought the the part and wont to fix it
Why won't your Pontiac Sunfire shift gears?
fluids are fine, no codes, and it wont shift past 2nd gear. any help?
1995 Pontiac sunfire stopped running and now wont star it just cranks over any suggestions?
check your timing
What would cause a 2003 Pontiac sunfire to die when it comes to a stop The idle goes all the way to zero and dies. But will start again and if you keep your foot on the gas when stopped it wont die?
possibly idle air control vault getting faulty or restricted air flow
Serpetine belt wont fit back on 2000 Pontiac sunfire 2.2?
In addition to moving the tensioner pulley, you might have to loosen the alternator to gain a little more slack space.
2003 Pontiac grand am turns over and wont start?
security lock out had same problem with our 2004 grand am
On my 95 Toyota corolla The heater defrost switch wont click over to defrost anylonger so the front defrost wont work is there a way to manually switch it over or how would i fix that?
You could always take it to the shop You could always take it to the shop
Is freon needed to drive a car?
no but your defrost wont work well
Why would a 96 Pontiac Sunfire stall out having all the lights come on and the gages jump up and down and it wont start back up?
I'd suspect the alternator. You can have it checked at most any of the chain parts stores. FriPilot
