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#1
01-09-2004, 03:42 PM
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no air coming from heater vents
my son has a 93 t/a, he says he is getting no air flow from the heater, he also had trouble with the a/c doing the same thing. He says that he has two friends with camaros that have the same problem. Is this a common thing? He says he has checked the fuses and finds nothing wrong there. I am going to go this weekend to look at it, what should I check first? thanks.
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#2
01-11-2004, 06:06 AM
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Hay there, i have the same problem in my 86ta. Finally i ran 12v to the fan right from the battery. the fan still didnt turn so i ended up taking it out tonight. is -18c out and boy is it cold.
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#3
01-14-2004, 11:32 AM
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Re: no air coming from heater vents
Does the fan run,but there is no air flow? I had the same problem on a different car. It turns out that GM likes to put the heater core & a/c evaporator within the same duct. What happens is the a/c picks up condensation & the dust & dirt will build up on it. I took mine apart to clean it & now I have much better air flow.Maybe you could get away with running some sort of anti-mold agent through the cowl inlet. I hope that helps.
__________________
 1977 GMC Jimmy - daily driver-sitting on 33's and bedliner inside and out 1995 9C1 Caprice - winter beater 1994 Impala SS - newest project 1991 9C1 Caprice - (rip) "There are two great problems in the world today; an ever-growing lack of common sense, and too many warning labels. Take away all of the warning labels and the problem will work itself out..." -B
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#4
01-19-2004, 05:27 PM
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thanks for the help, I still havent done anything with the car since I posted, the fuel pump quit the day before i went, so we called it off. After more questions, he told me that there is a small amount of air coming out, with a bit of a change in flow when changing switch settings. So yeah it sounds like something is plugged or a duct has come loose. Is there a filter involved somewhere in the system?
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#5
01-19-2004, 08:53 PM
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Re: no air coming from heater vents
There should be a piece of foam attached to the a/c evaporator.The dirt should either be stuck to that,or the opposite side of it.When I cleaned mine off there was a buildup of about 1/4 inch of crap on it.You could imagine how that hindered air flow.Anyways now the heat gets pushed through the duct alot better.
__________________
1977 GMC Jimmy - daily driver-sitting on 33's and bedliner inside and out 1995 9C1 Caprice - winter beater 1994 Impala SS - newest project 1991 9C1 Caprice - (rip) "There are two great problems in the world today; an ever-growing lack of common sense, and too many warning labels. Take away all of the warning labels and the problem will work itself out..." -B
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#6
01-22-2004, 06:36 PM
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Re: no air coming from heater vents
for the heater in my 84, i found out my blower wanst grounded, so for a short time i ran a wire from the blower the the negative terminal on my battery till i had time to re-connect the ground
__________________
84 TA- 350 bored dynomaax shorty headers custom 3" exhaust electric exhaust cut out holley 600 cfm carb 340+HP cam? 97 jetta white 15" bbs wheels 2 JL 12W3's and 2 JL 500/1 amps (for sale)
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