Distribution duct vacuum actuator

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gull
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Distribution duct vacuum actuator

Post by gull » Tue Dec 07, 2010 4:01 pm

I've got a vacuum leak in the HVAC system. I tested the hoses on the vacuum switch one at a time, and narrowed it down to the one marked "to vacuum unit for distribution duct" on page 3-10 of the Haynes manual -- the second from left, when you're looking into the radio opening. What the Haynes doesn't tell me is where this vacuum unit is located or how to access it...I just have a hose disappearing into the bowels of the dash. Anyone happen to know? It seems to be a pretty important one, because right now I get air to the defogger and nowhere else in all lever positions.
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Briano1234
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Re: Distribution duct vacuum actuator

Post by Briano1234 » Tue Dec 07, 2010 8:51 pm

Thank you Kammy.


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gull
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Re: Distribution duct vacuum actuator

Post by gull » Tue Dec 07, 2010 11:05 pm

Thanks, that's very helpful. Now to figure out how to get to it.
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Briano1234
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Re: Distribution duct vacuum actuator

Post by Briano1234 » Wed Dec 08, 2010 12:16 am

If you are talking about the servo that deflects the flow from full frontal to defrost.
You have to remove the DASH.

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gull
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Re: Distribution duct vacuum actuator

Post by gull » Wed Dec 08, 2010 2:05 am

Yeah, that's not happening. ;)
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kamzcab86
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Re: Distribution duct vacuum actuator

Post by kamzcab86 » Wed Dec 08, 2010 9:44 pm

That servo is a common failure item. I had to replace it on mine several years ago. That being said, I dare you to try replacing that thing without removing the dash. :mrgreen:

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