1989 f250 7.3 idi

[George Garcia]

Truck has trouble starting up i changed the fuel pump and also installed a electronic fuel pump brand new lift pump and fuel filter new glow plugs. When i start it up i have to connect the cables because battery will drain after trying so much after i got it started it will idle in park for hours but once i hit the roads it marks fuel filter and when in low rpms it starts bogging down as long as i have the gas pedal down a bit it wont do it. Battery light is on today i will have them check the charging system.

 

[goldsjos18]

how old is the fuel in the tank?

 

[George Garcia]

I really cant tell you that i bought the truck and he had put 5 gallons in it to start it and i never flushed it i just filled it up

 

[Fordfan90]

Truck has trouble starting up i changed the fuel pump and also installed a electronic fuel pump brand new lift pump and fuel filter new glow plugs. When i start it up i have to connect the cables because battery will drain after trying so much after i got it started it will idle in park for hours but once i hit the roads it marks fuel filter and when in low rpms it starts bogging down as long as i have the gas pedal down a bit it wont do it. Battery light is on today i will have them check the charging system.

As far as the charging system works I would check the alternator and the voltage regulator.

 

[Fordfan90]

I really cant tell you that i bought the truck and he had put 5 gallons in it to start it and i never flushed it i just filled it up

Sounds like it has some old fuel in it. I would put some additive in the tank and run it.

 

[homelessduck]

It is not a good idea to have both the mechanical lift pump and an electric pump. If the diaphragm in the lift pump goes bad the electric pump will pump diesel straight in to the crank case . This can ruin an engine before you even know something is wrong. If you want to use the electric pump you should eliminate the lift pump and toss a block off plate in its place.

 

[George Garcia]

Okay so off with the mechanical pump and straight electric fuel pump. And i drained the fuel and im putting diesel kleen and new diesel see what happens today will post in a few hours