I just found the source of my P0172 problem...the vacuum hose behind the power steering pump. I checked bay13, and it talks about moving or removing the power steering pump to gain enough access to get at the clamp holding the hose at the manifold.
Does anybody have any tricks that they can share on this repair? Removing the power steering pump seems like it would require removing the serpentine belt and risking disturbing the hydraulic hoses. I would really like to repair this without disturbing the power steering pump, but can't see very well to know what I'm up against.
Also, it looks like this is a specially made hose. It looks like a
1/2 inch hose at the manifold which turns into a 1/4 inch O.D. hose in the middle, and then does a 90 and widens out to 1/2 inch O.D. where it connects to a plastic tube which goes under the intake manifold "header". Does this sound right, or is mine just buggered up? Can this hose be made out of different size vacuum hoses and some copper tubing to splice them together?....I'm excited to have finally found the problem, and want to dig into this tomorrow evening, and will really appreciate any hints that I can get. Thanks,
Andy