does 4.3 vortec on a 1997 gmc jimmy fuel pressure regulator have a vacuum...

[Fastasskicker]

...line that goes to it? fuel pressure regulator have vacuum on it

 

[Molson02536]

...line that goes to it? fuel pressure regulator have vacuum on it

Yes it does and you have to remove the upper intake to get to it. Here is a link that should help you get to it, the information is in how to replace the CSFI.

Good luck and keep us posted.
http://members.shaw.ca/betterthanyoutoo/Sticking Poppet.htm