RE: Speaking of TSBs...

[Richard Beels <beels@technologist.com>]

I replaced the two main ones coming off the ISV with the real Audi parts
from Carlsen.  Cost $30.  The other small vac hoses at the rear of the
engine and around the waffle/throttlebody were replaced with generic vac
hose from Pep Boys.  I just went to PepBoys and bought 5 feet of every vac
hose size they had for like $5-6.  Spent another $5-6 bucks on hose clamps
of various sizes and styles and spent an hour or so replacing all the vac
hoses.

The one thing you need to be careful of is the long, straight vac hose off
the ISV rear port that connects at the rear of the engine to a plastic
elbow that has a third hole in the elbow joint proper.  It's a crankcase
vent.  Be careful not to break this part (as I did), it's a pain to remove.  


At 11:45 AM 2/18/1999 ,  Dan Sinclair was inspired to say:
> Hi Richard.  I saw the note on your signature line about NEW VAC HOSES.  I'm
> about to order some up for my 1988 90 (keep getting weird idle and near
> stall problems - other qlisters are certain I've got a vac leak, and I'm
> inclined to agree).
> 
> I was wondering what hoses you replaced.  The two obvious ones diagramed in
> the Bentley manual are the hoses going to and from the ISV, and looks like
> another elbow hose connects the ISV hose to the rubber airbox boot.  And
> then there's the hose coming out of the intake manifold and running to the
> brake booster I think.  Any others?  Also, where did you get your hoses?


Cheers!