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Pontiac Grand Am Heating/Cooling

88 messages,  Last post on Jun 21, 2009 at 3:57 PM

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What is this discussion about? Pontiac Grand Am, Heating / Cooling, Sedan

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#1 of 88 Fan problems 1999 Grand Am by july1979 Sep 25, 2006 (2:16 pm)
The fan won't work when it is on setting 1 or 2 but when it gets turned up to 3 it blows to hard. I am wondering if it is something that can be fixed easy I would like heat and air but not on high. Replies to this message: burdawg (Sep 25, 2006 3:58 pm) jsabat (Oct 27, 2006 9:23 am) burdawg (Oct 27, 2006 3:52 pm) mlhoward (Oct 27, 2006 6:11 am)
#2 of 88 Re: Fan problems 1999 Grand Am [july1979] by burdawg Sep 25, 2006 (3:58 pm)
Replying to: july1979 (Sep 25, 2006 2:16 pm) Most likely the fan control board has gone out, a common problem, and not hard to repair. The part is about $25, it's in the plenum on the passengers side on the bottom. It's a little hard to get to the rear screw. Replies to this message: jsabat (Oct 27, 2006 9:23 am) burdawg (Oct 27, 2006 3:52 pm)
#3 of 88 Re: Fan problems 1999 Grand Am [july1979] by mlhoward Oct 27, 2006 (6:11 am)
Replying to: july1979 (Sep 25, 2006 2:16 pm) My cousin has a 1999 (mine is a 2003). When I bought mine he came over to look at it and mentioned he hoped they had fixed the problem. I remember him fixing it himself so it can't be that hard.
#4 of 88 Re: Fan problems 1999 Grand Am [burdawg] by jsabat Oct 27, 2006 (9:23 am)
Replying to: burdawg (Sep 25, 2006 3:58 pm) Hi, I've had the same problem with the resistor board. I also cannot get the rear screw out! How did you accomplish this? It seems to be an odd size too, do you happen to remember the size?   -Joe Replies to this message: burdawg (Oct 27, 2006 3:52 pm)
#5 of 88 Re: Fan problems 1999 Grand Am [jsabat] by burdawg Oct 27, 2006 (3:52 pm)
Replying to: jsabat (Oct 27, 2006 9:23 am) I don't remember the exact size, but I used a small ignition wrench (a small wrench made out of stamped steel) and just turned it out a little at a time. I believe it was something like 11/32 but I'm not sure.
#6 of 88 heater blower in car by latin198 Feb 25, 2007 (5:12 pm)
my heater/defrost/ac was working fine the other day in my 2004 grand am gt and now it does not blow any heat or air in any setting. what can be wrong with it? Replies to this message: burdawg (Feb 25, 2007 10:07 pm)
#7 of 88 Re: heater blower in car [latin198] by burdawg Feb 25, 2007 (10:07 pm)
Replying to: latin198 (Feb 25, 2007 5:12 pm) It could be any number of things. Blower motor out, fan control board, or the switch itself.
#8 of 88 Problems w/climate control by nncrffnbrd May 01, 2007 (9:26 am)
my car (2005 Pontiac Grand am), the climate control won't switch from defrost, vent, heater, the blower works fine and it's hot when I want hot and it's cold when I turn on the ac, but I can't switch between the different functions. There is a hiss sound that comes out from behind the knob that does the switching, what do I need to check/fix? Replies to this message: burdawg (May 02, 2007 5:37 am)
#9 of 88 Re: Problems w/climate control [nncrffnbrd] by burdawg May 02, 2007 (5:37 am)
Replying to: nncrffnbrd (May 01, 2007 9:26 am) Pull the knob off and see if the back of it has broken. Look closely in the area where it goes on the shaft. That control puts the most pressure (torque) on the knob and it's not uncommon for it to crack and slip over the shaft instead of turning it. If that's the problem you can use one of the other knobs as a replacement. The knobs are not expensive, about $5.00 or so on Ebay. I've owned three GA's and have had to replace that knob on all of them at one point or another. If it's not that and it is the mode control switch itself, then the entire assembly (fan speed, temp, mode control) has to be replaced since it's supplied as a unit. I'm willing to bet though it's just a cracked knob.
#10 of 88 climate control know by nncrffnbrd May 02, 2007 (6:25 am)
Thanks, the knob had broken already and I've done just what you said, used one of the other ones, but even though the other is a good fit and all, I can turn the knob to the different positions and it's just now changing. I can also hear a slight hiss. If it's the other thing you said had to be replaced have you any idea what that costs? Replies to this message: burdawg (May 02, 2007 9:56 am)

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