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Old 07-04-2013, 13:34   #1 (permalink)
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No ac from vents

Hi
No AC coming out of vents, all being directed to windshield and floor
Control seems to be ok, self tested on 888 which i think means it is opperating ok
All air tubes, black white red yellow and blue, appear to be well fitted to back of control, and can see that blue red and yellow also secure at other ends
Sometimes i can get good air flow out of vents, if turn on engine with ac turned off, dont understand why this is, usually loose air from vents as car speeds up
Is it possible to switch some lines and still get good ac from vents
Read somewhere that one air line goes into intake manifold, could not find this one, or where the white air line goes to
Also read that napkins in the glove box could be sucked in and cause blockage, i had a trash bag in there, and ac may have worked better after i removed it
Seems to be a common problem
Thanks
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Old 07-04-2013, 14:35   #2 (permalink)
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Re: No ac from vents

There's a vacuum leak somewhere. Usually under the hood. Could be the reservoir under the hood leaking too. What year is it?
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Old 07-08-2013, 10:44   #3 (permalink)
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Re: No ac from vents

Thanks for reply
It is a 2004 Grand Marquis
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