95 Flowersmoke engine trouble

[Tx Redneck]

95 f350 7.3 turbo

Truck dies after driving it a distance and the filter light comes on then dies. Fuel filter has been changed many times and is clean.
You can fill the filter housing with fuel and it will start and run, but once it dies, the filter will be dry.
Pressing the Schrader valve on side of filter housing sprays fuel. Could it still be the fuel pump?

Saved and Texan by the Grace of God, Redneck by choice.

[racrguy]

Make sure the fuel inlet from the pusher pump isn't clogged. I don't recall if they've got an auxiliary filter between the tanks and the main filter.

[Sean88gt]

Do the PSD's use a lift pump?

[Mysticcobrakilla]

Do the PSD's use a lift pump?

Yes, it's in the valley.

[racrguy]

Yes, it's in the valley.

That's the main pump.

[Cooter]

7.3's lift pump is in the valley. along with the HPOP

sounds like it's sucking air somewhere

[Mysticcobrakilla]

That's the main pump.

On some models, it's the only pump.

7.3's lift pump is in the valley. along with the HPOP

sounds like it's sucking air somewhere

This! Check for cracked/broken fuel lines in between the lift pump and the tank
Make sure there is fuel in the tank...

[kingjason]

On some models, it's the only pump.



This! Check for cracked/broken fuel lines in between the lift pump and the tank
Make sure there is fuel in the tank...

Tanks right? My 95 had a switch on the dash.

[Cooter]

good call, the dual tank setup can be a friggin' nightmare

[Tx Redneck]

Thanks for the info gents. I've sent a link a for this thread to my buddy doin the work.

[greenbullitt]

im seeing sender problems with obs trucks now that theyre getting pretty old. its either that or the switching valve, they like to get stuck. also, default is the rear tank so even if youre on the front tank, if its in default and the rer is empty...well, you get it....


ps, ive seen the switching valves transfer fuel from one tank to the other. I would start with the valve...

[Cooter]

im seeing sender problems with obs trucks now that theyre getting pretty old. its either that or the switching valve, they like to get stuck. also, default is the rear tank so even if youre on the front tank, if its in default and the rer is empty...well, you get it....


ps, ive seen the switching valves transfer fuel from one tank to the other. I would start with the valve...

had an OBS IDI that the dude spent more than the truck was worth (possibly even when new) fixing that dual tank BS