Fuel issue need help.
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Fuel issue need help.
Hi. I have a 92 f250 7.3idi with a banks turbo. The truck fires up great and runs great. After the truck is warm i let it sit for a bit go to fire it up and it just cranks. So i crack my one injector and im not getting fuel. I changed the fuel filter. And my next guess is either the pump is starting to go or air is getting into my fuel lines. Is there anything else i should check?
Thanks
Thanks
Tuned
Joined: Jan 2011
Posts: 271
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From: Bluffton, IN
Pour cool not COLD water over the injection pump when this happens-if it starts the injection pump needs rebuilt. What most likely is happening is the pump is worn then the clearances in the pump get larger and it quits pumping fuel. When you pour the cool water on the pump the housing shrinks and lets the head build pressure again.
Posting Guru
Joined: May 2015
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Pour cool not COLD water over the injection pump when this happens-if it starts the injection pump needs rebuilt. What most likely is happening is the pump is worn then the clearances in the pump get larger and it quits pumping fuel. When you pour the cool water on the pump the housing shrinks and lets the head build pressure again.
Postmaster
Joined: Dec 2011
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Try the pour cold water trick. Let us know what happens.
Anything with air intrusion would be a lot worse when cold, and very little to no problem when hot due to how short a period of time the engine has been sitting.
Anything with air intrusion would be a lot worse when cold, and very little to no problem when hot due to how short a period of time the engine has been sitting.
Laughing Gas
Joined: Jun 2007
Posts: 1,106
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From: Virginia
Has the IP manufacturer not taken into account the expansion rate of the plungers and cylinders? The water trick may work, but the OP said that once it cranked to the point that fuel was at the injectors, it started with no problems; "for a while". I am, of course, assuming that the OP did not crank the engine into the night where the IP temperature was lowered to the point just above freezing.
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Postmaster
Joined: Dec 2011
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The water trick may work, but the OP said that once it cranked to the point that fuel was at the injectors, it started with no problems; "for a while". I am, of course, assuming that the OP did not crank the engine into the night where the IP temperature was lowered to the point just above freezing.
By the same token, injector pop pressure affects it majorly. I once upped my pop-pressure to like 2200PSI to test it, and the engine ran fine... until I turned it off and let it sit for a half-hour in the middle of August. Wouldn't fire, finally cooled the IP enough to get it started. Dropped the pop pressure to 1800, no more issue under the same conditions.
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New User
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Hi, so the truck did it yesterday, i poured cool water on the IP, and it didnt change anything. Its getting a bit better when i cranks but wont start i just put the throttle to the floor and it fires within 3 cranks
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