'88 Ranger upper manifold

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Apr 8, 2011 | 10:29 AM

herby666

Thread Starter

Freshman User

Joined: Mar 2001

Posts: 33

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From: Stuttgart/Germany

'88 Ranger upper manifold

I found out that the hose comes out of the vacuum tap at the upper manifold of my 2.9L EFI engine. But still I do not know where the other end of the hose belongs to...
What else could be the problem, that my Ranger does not run in the idle after the winter breake?

Still I did not find a way to put a picture of the hose here in the forum.

Bye - Herby Germany

Apr 8, 2011 | 06:16 PM

xlt4wd90

Lead Driver

Joined: Sep 2003

Posts: 7,018

Likes: 210

From: SoCal

There are a number of things that use vacuum from the engine, and some could be sensors. If at first you can not find where that vacuum hose goes to, try plugging it. At least that should let the engine run better. Do you know the general vicinity of the loose end of the hose when you first found it?

If you can't post pictures in this forum, can you post your picture some place else, and then provide a link to it here?

May 1, 2011 | 11:33 PM

Bullitt390

Certified Thread Hijacker

Joined: Aug 2001

Posts: 14,441

Likes: 60

Is this the vacuum tap at the rear of the manifold or near the TB? At the rear of my 87 2.9 the 2 larger ports are plugged.

Actually when I first got the truck one port was used for a goofy JC Whitney style cruise control unit.

Josh