suednim

Car: 2007 Taurus SE I started up fine but the car would not keep running after fast idle. Holding the throttle down kept the engine running. Classic vacuum leak scene. Searching, I found a hole of ~ 1/2 in. in the corner of the rubber right angle connector at the top of the upper int. man. on the right side where 2 small vac. hoses feed into the connector. Why? Is this a known problem? The hole looks like it was worn/melted yet there is nothing in the area that I can see around it that would cause the damage. What do those 2 small vac. line that go into that fitting control? As a temp. fix I just slathered some sili. rubber and fabric over the hole to keep the car in service 'til I get a new fitting, but i don't know what to call it. If anyone has some info. plz give me some feedback.

moto4

Sounds like you found a good fix. Does the car run fine with the fix?
My guess would be that the two lines coming from the boot went to the EGR valve and the Heat/AC controls.
As to parts, the dealer will be able to give you a replacement pretty cheap I would think. Autozone might have a universal one in their HELP section, the replacement parts hanging on a card in the store. It is amazing what one can find there.

suednim

I only let the patch dry for ~ 4-5 hrs. 'cuz I was impatient, but the fix seems to have worked and the car idles smooth now. I'm really puzzled why the hole appeared just 1-2 days after using the car w/o any symptoms. I've begun to think Alvin and friends may have been snacking on the rubber. Uh, don't just laugh this off, either. My Z had a hole chewed in the air filter and a nest bilt by a chipmunk in frt. of the TB. I only found it when I was taking the air cleaner stuff off to put in a new rad. Coulda been serious if I hadn't found it in time. I had to put metal lath in frt. of the air induction boot! The chipmunks (...minks?) regularly nest on the manifold and any horiz. surfaces under the hood.

KStromberg

It's amazing how even a small hole in vacuum/emissions lines/fittings can cause issues such as this. I had the infamous emissions tee on my 91 Town Car which had a small hole in it. It was a $4 part from the Help section at my local auto store but the bad one made the car run like 50 cents.

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-1992 Ford F-150 (winter truck)
-1998 Lincoln Mark VIII LSC (fun car)13.591@101.72mph