I am investigating a rough idle / random engine dies problem on a 99 Olds Intrigue with the 3.5L. I was looking at the IAC valve but in removing the IAC from the car I may have found a different problem.

When I disconnected the vac line from the FPR to the TB, I noticed fuel in the vac line. I verified that a small amount of liquid gasoline will come out of this vac line when I pressurize the fuel rail (by turning the key to RUN) if the line is disconnected from the TB. It is a VERY small amount of gasoline, but it is repeatable. I think this is abnormal behavior as the gas must be getting through the FPR's internal seals, but I need someone to confirm for me as the part is $80 and takes 4 days to get.

TIA.


this was originally posted on the oldsmobile page, but I have clarified the wording a bit.
http://www.automotiveforums.com/vbulletin/t134899.html