Motor loses fuel pressure

PAINTER · #1 (**permalink**) 08-08-2009, 04:15 PM

Motor loses fuel pressure.
I installed a new alum fuel tank and started having a fuel problem.
Driving at a normal speed and it will just die.I change the electric fuel pump and it didn't fix the problem.The pump runs at 6.5 lbs to a eddlebrock 750 carb.
It does'nt happen very often but it could happen at the wrong time.If i pull over it will usually start up.It's not a heat issue because it has happened on cool days without the engine up to temp.I cleaned all the lines and filters and found no problems.The engine is a 460 crate 4 years old.The first three years did't have any fuel issues.I changed the tank because of fuel smell in the trunk with the plastic fuel cell.The tank is not vented but I tried driving with the gas cap open a crack and the problem didn't go away.The new tank was very clean wnen installed.
painter

rustyBob · #2 (**permalink**) 08-08-2009, 05:01 PM

My guess was the vent........but you might check to see if there is a filter on the end of the pickup and maybe it has something on it or it has a kink in it ......or your ground on your pump is bad.......good luck.

Gaz64 · #3 (**permalink**) 08-08-2009, 10:05 PM

Driving at normal speed and it just dies?

Does the car make normal WOT power?

Do you run a fuel pressure gauge within drivers view?