08 Crown Vic- loose vacuum lines & plug under dash

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For weeks now, on Mom's 08 Crown Vic, there have been several clipped-together, small diameter, stiff plastic vacuum lines loose under the dash- down in the driver's side floorboard now! One or two of these lines are plugged into a strangely shaped rubber plug- imagine a hollow box shape, with a much smaller box protruding off one side. I've looked under the dash with a flashlight & can't see anywhere to plug in the rubber plug. Maybe up behind/above the factory radio/head unit?

Several of the vacuum-actuated controls work poorly or not at all. Pull running car into drive w/brake set- parking brake does not auto-release. Go up slight hill w/AC running- AC stops coming out dash & goes to defrost vents instead. Power is way down, as might be expected with a vacuum leak. :^P

I figure this is a 2 minute job for anyone who's done it before. If you've seen this before, on late model Crown Vics/Grand Marquis, & know where to plug in the plug & hang up the vac lines- or you know where to look for an answer- I'd appreciate any help you can offer. Thanks in advance.
 
It'll be up there, and parts may have to come off to get at it.
I don't know exactly where it goes on your car, but you are right... it is a vacuum connection.
You may want to secure it to stay on better with tape or nylon ties, since it is not accessible.

With a vacuum leak a the vent door actuator, other vacuum things won't work right. One will affect the others due to the acuum loss.

You may need to repair plastic lines as well as a connector or two. Simply use a short piece of rubber tubing from the auto parts store.
good luck!
 
Originally Posted By: Jim 5
Shouldn't an '08 still be under warranty? If so, I'd just let the dealer fix it.


X2 Stuart, take it into the dealer. I have an '08 Merc GMQ, and fortunatly havn't had anything like that fall down, although today I have to take it to the dealer to have the multi-function windshield wiper switch replaced.
 
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