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Another Vacuum hose question -

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Old Jan 11, 2011 | 07:19 PM
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Default Another Vacuum hose question -
I am having the problem it looks like so many have - when I turn the key off the wiper door slides open. Here in the photo - when I turn off the car this hose still has suction... and then it will trigger the aculator and thus opening the door.



Someone on an early post said to replace the Check Value and that should fix the problem. Just ordered a check value.

Thoughts - Is that the problem??

thanks
Mark
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Old Jan 11, 2011 | 08:46 PM
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Lets look at the design. There should be vacuum stored in the vacuum tank after the car is shut off. Note, I said should. To open the lid, vacuum is applied to the actuator. This is controlled by the small signal line from the switch. The system is designed to fail safe open. So to open the lid, the vacuum is cut off to the vacuum switch and the lid opens. If the check valve is bad, as soon as you cut the engine, the vacuum signal falls to zero, which opens the lid.
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Old Jan 11, 2011 | 09:58 PM
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Trust me... I hope it works..

Where is New Hill - I am in Greensboro..
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Old Jan 11, 2011 | 10:25 PM
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Originally Posted by ultimix
Trust me... I hope it works..

Where is New Hill - I am in Greensboro..
Near Raleigh on your side.
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Old Jan 12, 2011 | 10:51 AM
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Originally Posted by wombvette
Near Raleigh on your side.
I saw in your profile you have a shop.. you work on vette etc..

Mark
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Old Jan 12, 2011 | 02:24 PM
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Originally Posted by ultimix
I saw in your profile you have a shop.. you work on vette etc..

Mark
Was that a question? Yes, Corvettes, not much of the etc.
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Old Jan 12, 2011 | 10:16 PM
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Originally Posted by wombvette
Was that a question? Yes, Corvettes, not much of the etc.
Sorry yes that was a question.... I was am always looking for someone that can work on my vette that I can trust. And since you are close was just curious.
Last edited by ultimix; Jan 12, 2011 at 10:23 PM.
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Old Jan 12, 2011 | 10:16 PM
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Well - I installed the check value - and it is still doing the same thing.

I traced all the lines in the wiper diagram and everything looks good...

I guess the next step is to use a Vacuum tester and check each line - Yes?
Last edited by ultimix; Jan 12, 2011 at 10:23 PM.
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Old Jan 13, 2011 | 12:35 AM
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Maybe you already tried this, but did you try swithcing the valve around? Maybe it is installed in the wrong direction.
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Old Jan 13, 2011 | 08:01 AM
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Originally Posted by vettehardt
Maybe you already tried this, but did you try swithcing the valve around? Maybe it is installed in the wrong direction.
I can try that - but I used the wilcoxx diagram and according to it - its installed right - but hey.. it wouldnt hurt to try that.

I am thinking I have a hose that a leak in it..
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