[Shotimes] Canister at back of manifold

Josh Salaets jsalaets@msn.com
Tue, 15 Apr 2003 19:52:30 -0700


> Can anyone tell me what the canister is for at the back of the manifold?
> Appears to have to vacuum (?) lines attached to it with one of them being
> about 3 inches long in the shape of a "U" directly connecting to the
intake
> manifold.  That one line has a slight tear in it.  What effect if any
would
> this tear have? Small vacuum leak? Incorrect idle? Thanks

This is part of the vacuum controls for the secondaries.  Chances are if you
have a leak, your secondaries aren't functioning properly, if at all.

An easy way to check is to look at where the rods for the secondaries (there
are two of these dead-center on the front and rear of the intake) are with
the car off  When you turn it on, they should move.  If not, that vacuum
leak is prevening them from closing, and causing you to lose a lot of your
power below 4K.

A pretty easy fix.

Good luck!

Josh Salaets
95 SHO MTX (See it at: www.cardomain.com/id/sh0gun)
85 Omni GLH-T (Yeah, it's fast)
NWSHOC Member
Eugene, OR