Do any list members own Quantum's?
I have an 87(CIS-E) 5 cyl that seems to have a vacuum problem.
A short hose that runs from the intake to the idle air stabilizer collapses
under manifold vacuum.  The motor makes an audible sucking noise when
running.  All the hoses and boots seem to be tight.

Does anybody have a vacuum diagram for this model?
Hopefully there is one in the Bentley, I haven't located a manual yet.
I would be most appreciative if someone could supply me with this info.

Thanks, PSD.