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more fule issues.....

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Old Jul 17, 2010 | 11:14 AM
  #1  
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more fule issues.....

6.9l idi non turbo.

i cannot find where im havin fule issues. the lines are good and not rusted, and i am getting fule from the lift pump to the filter. i dropped the tank and cleaned out what was left of the rubber part of the sending unit, i also installed a new lift pump.



from the fule filter whitch is also new im gettin about a 1/3 o a pint in 10 seconds.

the truck will run fine for a while till it warms up. it will be runnin then will start pulsating as if loosing power. Then the truck compleatly shuts off.

Its benn getting worse and worse, the truck will only go a few feet now before dieing once it is warmed up.


This is my only truck and i have no clue what to do.

I love the 6.9l idi f250, but if i cant fix it this week im gonna have to sell or scrap it and get another truck.


any help is appreciated

i live in duluth georgia so give me a call


kevin St.Amant
404-414-5634
 
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Old Jul 17, 2010 | 11:30 AM
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Sounds like the time I had a clogged fuel filter. Put a new one on lately?
 
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Old Jul 17, 2010 | 11:32 AM
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yep. about 300 miles ago. pulled and checked it its clean.
 
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Old Jul 17, 2010 | 11:39 AM
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Was the arm on the new lift pump almost straight or did it have a 90 degree bend in it?

If the arm was almost straight, did you turn the engine over till the low spot in the cam eccentric was visible?

If not, the lift pump may be the problem.

Pulsing after the engine warms up sounds like a fuel supply problem.

How many miles on the IP?
 
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Old Jul 17, 2010 | 12:00 PM
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i dont know, i bout the truck two months ago.

yes i followed the instructions on the lift pump instalation.
 
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Old Jul 17, 2010 | 01:29 PM
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Any chance you pulled wires on the ip when you changed the lift pump (I know just asking)?
 
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Old Jul 17, 2010 | 02:21 PM
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nope, the plugs were chewed up and i replaced them.

just got done walking home.

6.9l f250 xlt for sale
gray paint
red interior
285x27r16 micky tohmpson mud tires with 50% tread
4X4

1500 obo.
 
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Old Jul 17, 2010 | 02:22 PM
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Trucks parked on the side of the road at the intersection of Albion farm road and Rodgers bridge road in Duluth Georgia. 30096

Kevin
404 414 5634
 
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Old Jul 17, 2010 | 02:56 PM
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Did you change the filter after you cleaned out the rear tank?


I would be interested in what the fuel flow and pressure numbers are once the engine is warm.

How long does it have to sit before it will restart?

What year is this truck?

Do you get the same results with the front tank?

When it starts missing, have you ever loosened the fuel tank cap?

The older fuel caps were not vented.
There are vents on both fuel tanks that can get clogged if you spend much time off road.
That causes a vacuum in the tank and the engine runs out of fuel.
 
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Old Jul 17, 2010 | 03:04 PM
  #10  
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after the tank work i put a new filter in and filled it with diesel kleen.

The truck is a 1985.

No pressure gaudge for the fule, no more money or time.

if i cant fix the pig today she is gonna be scrap
 
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Old Jul 17, 2010 | 03:06 PM
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i only use the front tank, the rear is isolated, the tank selector switch is broken and is bypassed.

10 maybee 15 mins before restart
 
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Old Jul 17, 2010 | 03:08 PM
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When you say the plugs were chewed up do you mean the ones on the ip? If so is there a chance you got them hooked up backwards?
 
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Old Jul 17, 2010 | 03:41 PM
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nope. i did them one at a time.
 
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Old Jul 17, 2010 | 03:45 PM
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Ok just a thought.
 
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Old Jul 17, 2010 | 03:48 PM
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Did it do this before you worked on the ip wires?
 
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