Hello,
I have a 1995 f150 4X4 with the 5.8 it is starting hard and smells like gas when it finally starts my firend pulled the codes and tested the fuel pressure and says that the pressure is too high at 80 psi what can I do to fix this? the pump is only about 3mo old and it did it befor the change.

Thanks Joel.

 

Replace the fuel pressure regulator, fuel pressure is only supposed to be around 35psi.

The pump is fine, the regulator is all that's bad.

 

Yes johnsonswamp is right and here's how it works.

 

I will get it changed thank you for the info.

Joel.

 

The regulator and the return line is after the filter and before the Schraeder valve isn't it?

 

No, just like it shows in the diagram.

0. Tank
1. Pump
2. Filter
3. Injectors & Schraeder valve in parallel on same fuel manifold.
4. Regulator
5. Tank

 

lab288 - does it start easily if it has only been stopped for a minute or two? What about after sitting overnight? Just trying to diagnose my problem.

 

Blue streak, PM me with your problem and see if I can help you out one on one. Either that or make a new post if you're not sure about PM'ing.