Thread: 03 GP 3100 sfi fuel problem?

Your check valve in the fuel pump is leaking down.Thats what is causing it to leak back to the tank when the engine is off.

I have has someone tell me to start the car .
Pull off the vacum line off the pressure regulator and look for bubbles to come out of the regulator.. Well ive done that and nothing?

What do you guys think now??

I have been told that 50 lbs was ok and not the fuel pump..

Thanks you for the help.