Originally Posted by willwren
Fuel pressure problems can be tough to diagnose sometimes (FPR, check valve, pump, filter, etc), and you get in a tight spot having to assume that the recalled FPR is good. Having no change when the vac line is removed, I'd have to agree with Boosty and say you're seeing the max your pump can put out.
Old fuel pumps sometimes get weaker as they get hot during the day on a drive. This causes inefficiencies. If you trust your gauge, that'* some pretty low numbers. It might be time to swap it.
Looks like you're in KY, so there isn't much BC personal help there. Dropping the tank and doing the pump isn't too big of a deal. You need the pump and a new tank seal. Run the tank as low as possible, and have a friend ready to help. New tank bolts (and possibly straps) may be needed depending on your rust level.
I'm not sure if I trust the gauge 100% (it'* from Harbor Freight) so I will have to borrow my friends and see if they match. I never have an drive-ability issues, just the starting. Filter was replaced about 40K ago. Oddly enough, I NEVER hear the fuel pump prime. Either I am deaf, or it is super quiet. I am actually located in Ohio...Bowling Green, OH
I'm not too worried about the fuel pump ordeal, I'm in the middle of putting a 383 and T56 in my Sonoma, so I'm not worried about my abilities too much. It is just a hell of alot easier to swap out a FPR than a pump
Any suggestions on the best place to get a pump (price-wise) and I'm assuming stick with the Delco?