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#1
01-28-2012, 04:23 PM
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No air out of the dash vents
When I turn on the a/c or vent controls I don't get any air out of the vents. Could this be one or both of the a/c vacuum actuators? How can I find out if this is the problem? Thanks for you help
Pat A. |
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#2
01-28-2012, 09:52 PM
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99% of the time the fresh air motor behind the pass side kick panel has a circumference crack and lets vacuum pull air in from the crack instead of opening the vacuum motors for the upper vents....check it and you will see a crack....I have sold many of these as replacements for people having the exact same problem you describe.
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#3
01-30-2012, 09:17 AM
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Check to make sure there is good manifold vacuum at the a/c control or it will not come out the dash vents.
__________________
1971 Pontiac GT-37 Car is a junk yard dog and maybe one day will be restored. 
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#4
01-30-2012, 05:40 PM
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I assume you can hear the fan motor running and have already checked the high speed fan realy?
BJ
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1971 GTO 455 HO 4-speed - Cameo White, White Vinyl Top, Jade Green Interior, Ram Air Hood, AC, Honeycombs and 8-track 1974 Formula 455 I Owned in 1975-1976. Now Own Its Twin From Same Dealership 
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#5
01-30-2012, 06:03 PM
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The fan is runnig on all speeds. when I open the doors by hand you can here the "hiss" Like a vacuum
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#6
01-30-2012, 06:46 PM
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Quote:
__________________
Hundreds of Pontiacs in Az "Real Pontiacs only..no corporate nonsense!" Facebook- Pontiac Heaven Hosting- 23rd annual Pontiac Heaven weekend- Phoenix pending due to covid Pontiac Heaven Museum in process Phil 2:11 |
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