at my ends
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at my ends
I HAVE A 2002 F450 7.3 DIESEL I HAVE A PROBLEM I CANNOT FIGURE OUT MY TRUCK STUMBLES AND WILL NOT ACCELERATE AND HAVE THE HARDEST TIMES GOING UP A HILL I CANNOT CATCH SPEED ITS SHAKES SPUTTERS AND REFUSES TO GO. LIST OF THINGS I HAVE DONE IS CLEANED TANK NEW SENDING UNIT IN TANK NEW FUEL PUMP NEW FUEL FILTER NEW FUEL PUMP REGULATOR NEW VALVE COVER GASKETS ADN HARNESS NEW ICP NEW IPR I AM LOST AND DONT KNOW WHAT ELSE TO DO ALSO TOOK OUT ALL INJECTORS AND PUT NEW ORINGS ON THEM AND INJECTOR TEST SAYS ALL INJECTORS ARE GOOD ONLY CODE WILL SHOW UP IS LOW BOOST
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
Reading all that I was thinking you must have a big boost leak.... Then I read that it's throwing a code. Have you checked for boost leaks? Is there a lot of spot under the hood? Check all boots make sure there clean with no rips and tears and tight
Postmaster
Joined: Jan 2009
Posts: 4,006
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From: AL, Reform
is the truck empty and will not go?
ether you have low fuel psi, low oil psi, no boost, bad injectors, low compression.
dose it start fast? does it blow smoke when you are loosing power?
i would check the fuel psi just to see where it is.
second i would check the hpop psi it may be weak.
ether you have low fuel psi, low oil psi, no boost, bad injectors, low compression.
dose it start fast? does it blow smoke when you are loosing power?
i would check the fuel psi just to see where it is.
second i would check the hpop psi it may be weak.
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I HAV LOOKED FOR LEAKS COULD NOT SPOT ANY I THOUGHT ABOUT CHANGING HPOP TODAY BUT WAS TOLD IT COULDNT MAKE MY TRUCK ACT UP LIKE THAT OR MAKE IT STUMBLE I KEEP GETTING TOLD FUEL HAS TO BE IT BECAUSE THE HILLS CAN TRIGGER IT EVERYTIME
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
It could be anything. Fuel/air. You can't just look for a boost leak! Make a boost leak detector... Tell us a little more about your truck you have us limited information. Does it have gauges? If so what kind of boost are you making? Is it tuned? Have you checked fuel pressure?
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It could be anything. Fuel/air. You can't just look for a boost leak! Make a boost leak detector... Tell us a little more about your truck you have us limited information. Does it have gauges? If so what kind of boost are you making? Is it tuned? Have you checked fuel pressure?
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Wat do you think left that could make me have low fuel psi with all the things I have changed
Senior User
Joined: May 2012
Posts: 438
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From: Sioux Falls, SD
I had the exact same symptoms as you, and considering you were messing around in the tank, my guess is that you made the same mistake as me. When I did my hutch mod I accidentally swapped my pickup line with my return line on the cap of the tank. Therefor I was trying to suck the amount of fuel a 3/8 hose could support out of a 5/16 line. Once I dropped the tank and switched the lines back, all problems were solved.
My $.02
My $.02
Senior User
Joined: May 2012
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From: Sioux Falls, SD
Post Fiend
Joined: Feb 2002
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From: Carhenge
I had the exact same symptoms as you, and considering you were messing around in the tank, my guess is that you made the same mistake as me. When I did my hutch mod I accidentally swapped my pickup line with my return line on the cap of the tank. Therefor I was trying to suck the amount of fuel a 3/8 hose could support out of a 5/16 line. Once I dropped the tank and switched the lines back, all problems were solved.
My $.02
My $.02
Reps.
