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Fuel question.

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Old Apr 3, 2016 | 05:25 PM
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Nathan Cox's Avatar
Nathan Cox
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Fuel question.

Hey guys I'm learning a little more here and there about my 1984 F250 7.3 idi but can't quote get it to start. Still same problem of not getting fuel to all injectors. I unhooked a couple of hoses on the back of the ip to see if i had pressure, but I didn't have much at all. But with not having pressure I also have a few leaks on return lines and lines going from filter to the pump. I have fuel going into pump and out return lines. Just wanting to know if the leaks could cause enough air in system to keep from putting fuel into rest on injectors? Or if the injection pump just isn't putting out pressure it should be
 
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Old Apr 3, 2016 | 06:40 PM
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Just a few bubbles will cause the pump to loose prime and give bad pressure on output. I did have a 7.3 and learned by fuel leaks.
 
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Old Apr 4, 2016 | 11:02 PM
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Do you know the history of having the 7.3 installed in your truck? If you are in the cooler part of the world, its possible some or all of the glow plugs are less that functional. I changed just one known to be bad glow plug and my truck fired up a lot quicker when weather was still cool. When changed them all out the truck would start up faster than any newer truck gas or diesel.
 
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Old Apr 5, 2016 | 06:18 AM
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Forgot to add before....when was fuel filter change? If a weak pump. I added a inline low pressure electric fuel pump,which helped a lot.
 
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