Starts but needs alot of cranking

[Spanky_DSM]

Ok i had replace my fuel pump while waiting for my alternator to be rebuilt! Next day i got the alternator and after installing it started right up! Everything was good. Two days later i started hearing a really low humming noise from the engine bay. Another day later i go to start my car and it started acting up.

The car takes about three, five sec. cranks to start. on cold or warmed up starts.
any advice would be great. Thank you.

 

[Spanky_DSM]

UPDATE

I barley fixed this problem last night.
Finally got really sick of having to crank excessively and pulled my pump.

Turned out the o ring tore both times when i installed the oem fuel pump and the evo 8 fuel pump.

I pulled it last night and installed a new one, This time lubricating the o ring with some spit.

All the other times i installed them straight up.

Thanks to all the guys who replied on this thread.