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Car Forum / Ford / Ford Trucks / February 2007

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1990 F-350 7.3 diesel - no fuel to injectors

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fish - 02 Feb 2007 17:55 GMT
Truck wouldn't start this morning, I could tell it wasn't getting any
fuel.  I checked pressure going into and out of the fuel filter, both
were good.  There is power going to the injector solenoid.  Is there
any way to tell if it is a bad injector pump (before I spend $400 on a
rebuilt one)?  Thanks for your help, Ben
Steve Barker - 02 Feb 2007 21:33 GMT
Pull the return line off the top of the pump.  Then remove the black adaptor
fitting.  Put the breather back on.  If the truck starts, the pump is bad.
Yes, fuel will fly around a bit, but it's a sure diagnosis of a bad pump.

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Steve Barker

> Truck wouldn't start this morning, I could tell it wasn't getting any
> fuel.  I checked pressure going into and out of the fuel filter, both
> were good.  There is power going to the injector solenoid.  Is there
> any way to tell if it is a bad injector pump (before I spend $400 on a
> rebuilt one)?  Thanks for your help, Ben
Ford Tech - 03 Feb 2007 03:13 GMT
> Truck wouldn't start this morning, I could tell it wasn't getting any
> fuel.  I checked pressure going into and out of the fuel filter, both
> were good.  There is power going to the injector solenoid.  Is there
> any way to tell if it is a bad injector pump (before I spend $400 on a
> rebuilt one)?  Thanks for your help, Ben

If you go to www.oilburners.net, they have a whole bunch of tech articles on
IDI 6.9 and 7.3L engines, as well as a ton of guys with mega hours logged on
these engines.

Ford tech
 
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