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Old 06-18-2003, 10:02   #1 (permalink)
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Vent's suck in demister pozzy

My vent thingy wont change from the demister to anything else anyone have same prob?... I have checked all wires at the rear of it.
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Old 06-18-2003, 10:27   #2 (permalink)
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Isn't the vent change Vacuum controlled?
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Old 06-18-2003, 22:25   #3 (permalink)
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Re: Vent's suck in demister pozzy

Have you checked the under bonnet vacuum piping?

There will be 2 from memory, one is a feed from the intake plenum and the other feeds the heater tap, if either are off the vacuum controls won't work, if its the heater tap one, you should hear a slight hissing from the HVAC control area, the other of course will be silent.
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Old 06-19-2003, 09:04   #4 (permalink)
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Re: Vent's suck in demister pozzy

aah yeah i have reacently replaced the heater tap so that might have something to do with it...thanx

So all i gotta do is plug em in if thats the prob right
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Old 06-19-2003, 18:46   #5 (permalink)
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Re: Vent's suck in demister pozzy

Yep, the heater tap one just slides into the rubber bung thing. From memory this pipe is green.
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Old 06-21-2003, 19:44   #6 (permalink)
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Re: Vent's suck in demister pozzy

yeah your right it is green, and was also pluged in....:(
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Old 06-22-2003, 18:10   #7 (permalink)
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Re: Vent's suck in demister pozzy

Have you checked the main feed pipe off the intake?
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Old 06-22-2003, 19:26   #8 (permalink)
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Re: Vent's suck in demister pozzy

on mine, there are three vacuum hoses, two blacks and a green, from memory the green goes to the heater tap, one of the black ones goes to the connection on the back of the manifold (mpfi) and the other black one connects to the rubber hose which runs to the vacuum connection near the thermostat housing

The setup was similar before converting from CFI, the black one went at the back of the manifold near the base of the throttle body, the other two were as above

IF theyre all correct, pull the glovebox out and make sure the hoses are connected to the vacuum operated contol unit, and that its actually working
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Old 06-22-2003, 21:03   #9 (permalink)
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Re: Vent's suck in demister pozzy

Fixed it!!! :s6:

Yeah i found that the green was pluged in and only 1 of the black ones.

thanx for the help, now my feet can be warm!
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Old 06-24-2003, 23:39   #10 (permalink)
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Re: Vent's suck in demister pozzy

Well I've got a similar problem, mine gets stuck in the demister postion. but...if I turn it off and switch it to the heaters and turn it off, about 5 minutes later it will work!?. It's annoying and I just had a quick look at the hoses you guys explained and they seem fine.
Any help much appreciated.
Mason.
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