Fuel Pressure problem

[Curse]

Yesterday my fuel pump went bad. I was able to get a 255 intank pump that same day, so I went to work. Finished the car, it runs good no drivability problems at all. My only problem is before when I would start the car my FP gauge would read at 40 psi and hold that pressure for a few hours. Now when I turn my car on it reads at 45 psi, then when I turn the car off it will drop very fast to about 30 psi??? Whats the deal? No leaks or anything and the pump is the only thing I missed with. Any input as to whats wrong if anything?

 

[Daggar]

I don't think you have a problem. Yours would not be the first pump that I've seen bleed right donw after shut off. It seems to be allot more common with the higher volume pumps.

 

[Curse]

Cool started to get worried, it runs strong that gauge thing was just starting to be me worried. Thanks

 

[HISSIN50]

i am with Dags on that one. new pump and check valve might be working a little looser than the old pump's did.