My buddy installed a fuel pressure gauge on his 2001. He is running a standadine fuel manager series pusher pump inline before his stock lift pump. The sender is plumbed in on the outlet side of the fuel filter houseing. He is seeing 60 psi at an idle and 0 psi at full throttle. At full throttle the truck dies when gauge drops to zero.

What could be going on with his rig. I told him he had a bad gauge so he sent the kit back (electric autometer 0-100 psi), installed the new gauge and sendind unit and same pressure readings.

Thanks Mooseman

 

I have a FP warning light. The sender on it is installed between the lift pump & filter housing. I'm thinking you may have a plugged filter.

 

60 psi post filter is a LOT of pressure - I have a hard time believeing that...something is not right here.

Get a mechanical guage with a schrader filling and check the pressure on the filter test port.

 

Perhaps the stock lift pump has siezed?

The pusher pump is trying it's hardest to get fuel past it, and at idle it can,
but once you push the pedal it can't make it anymore so the pressure drops to nothing and the engine stops?


phox

 

Anything much above 25 is harmful to the VP44.

 

I agree with Dr. Evil...

60 PSI is a lot of pressure on the inlet of the VP44... Then to drop to 0 PSI at WOT now this is not enough fuel PSI for the VP44... No matter which way it a bad deal...

Only thing that I thing it is there is a chunk of debris (old rubber hose, etc) in the fuel line. This would cause the the fuel PSI to be high at idle and at WOT strave the VP44 to death.

I would disconnect the lines and blow them out... Just to be safe

Just my 2 cents...

 

Thanks for the help guys. I guess he will have to start tearing things apart before something blows apart.

mooseman