The pipe goes into a hole in the bottom of the fuel dist housing. It has an o-ring that creates the seal. If the pipe is not completely in the hole and/or the o-ring is missing or dislodged, the car will run horribly or not at all due to the huge vacuum leak. Same for the other one. Unfortunatly you need to remove the intake to get to it. Dave Swingle --- In dmcnews@xxxxxxxxxxxxxxx, doctorDHD@xxxx wrote: > I just noticed that the metal pipe that connects to the rear of the Idle > Speed Regulator is very loose on the end I can't see. Where does this end go? > How do I check it? > > The pipe that connects to the cold start valve is also a little loose under > the manifold. What is the easiest way to tighten this? > > Pehaps this is why 6530 doesn't idle well? > > Thanks again, > > Dave & 6530 > > > [Non-text portions of this message have been removed]