Fuel relay or fuel pump issues?

[mustangfan]

I have had this problem where my car just whirl's over and will not start. I basically have to prime my car using my key switch to get it to start sometimes. It doesn't do it all the time but it is very annoying when it does do it. So is it either the relay/pump or something else? I don't know if this will help but my fuel pressure gauge fluctuates alot when it runs basically around 30psi-38psi most of the time.

 

[MaximumRisk]

check your fuel filter, if it checks out ok, then the fuel pump needs to be replaced

 

[mustangfan]

Kewl i will have my friend who's a mechanic change the fuel filter and see if that helps any.

 

[fast4u200]

See how much pressure you have at the rail.....possible fuel pressure regualtor too...you have to see where ur losing pressure at

 

[mustangfan]

k i will have him check that for me.