1989 UHAUL
Registered User
Hello,
Wanted to introduce myself to you guys first, and hope that you accept me into this board!!
I have a 26 ft 1989 International U-haul (7.3 IDI - Spicer 5spd). I've owned this truck for about 10 years now, and bought it outright from u-haul. I use it daily as a company work truck.
I am having a mysterious fuel delivery problem, and I am hoping that somebody may be able to steer me into the right direction.
Several years ago I removed the old plunger fuel pump off the side of the engine, and replaced it with a 5 psi electric pump that starts pumping as soon as the key is turned forward. It has worked flawlessly for the past 6 years, but now every couple of days when I start the truck first thing in the morning, it will run for 4 seconds and then sputter and quit. I can try to restart it and crank and crank until the batteries are dead without even a sputter of hope!
Spraying starting fluid into the cleaner has no effect (after the glow plugs cycle and turn off).
The controller is clicking well, and I have 12 volts in the harness connectors. I have ohmed out all the glow plugs and they test fine when removed (Beru plugs). I have tested them in the block by touching them with a 12v test light. All is fine!
When I take the return hose off the fuel filter, fuel spurts out as the fuel pump pumps. Fuel is trickling back into the fuel tank from the return line, and all hoses and caps were replaced on fuel lines. No leaks!
One the truck starts in the morning it will run great for the whole day.
I am stumped...The fuses to the pump are all good, and I am running new clean fuel.
The shut-off solenoid on the pump has power to it and when you remove the connector terminal it clicks.
Where should I go next guys. I am stumped!!!
Hope someone can help.
Wanted to introduce myself to you guys first, and hope that you accept me into this board!!
I have a 26 ft 1989 International U-haul (7.3 IDI - Spicer 5spd). I've owned this truck for about 10 years now, and bought it outright from u-haul. I use it daily as a company work truck.
I am having a mysterious fuel delivery problem, and I am hoping that somebody may be able to steer me into the right direction.
Several years ago I removed the old plunger fuel pump off the side of the engine, and replaced it with a 5 psi electric pump that starts pumping as soon as the key is turned forward. It has worked flawlessly for the past 6 years, but now every couple of days when I start the truck first thing in the morning, it will run for 4 seconds and then sputter and quit. I can try to restart it and crank and crank until the batteries are dead without even a sputter of hope!
Spraying starting fluid into the cleaner has no effect (after the glow plugs cycle and turn off).
The controller is clicking well, and I have 12 volts in the harness connectors. I have ohmed out all the glow plugs and they test fine when removed (Beru plugs). I have tested them in the block by touching them with a 12v test light. All is fine!
When I take the return hose off the fuel filter, fuel spurts out as the fuel pump pumps. Fuel is trickling back into the fuel tank from the return line, and all hoses and caps were replaced on fuel lines. No leaks!
One the truck starts in the morning it will run great for the whole day.
I am stumped...The fuses to the pump are all good, and I am running new clean fuel.
The shut-off solenoid on the pump has power to it and when you remove the connector terminal it clicks.
Where should I go next guys. I am stumped!!!
Hope someone can help.