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sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 23114
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
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1993 dodge 5.9 cummins, d250 truck has tons of power in the

Customer Question

1993 dodge 5.9 cummins, d250 truck has tons of power in the morning pulling trailer but after a hour or less it acts like i driven staight up a hill . no more power . takes a mile to reach 60. i changed lift pump an put in new injection pump . turbo .
is there a fuel screen on lift tube in the tank ? would it be getting plugged up with crap .?
Submitted: 2 years ago.
Category: Dodge
Expert:  sprinkles08 replied 2 years ago.
Hello and welcome to JustAnswer!
There are a couple places there could be a restriction causing fuel starvation. Since the problem happens after running for a while that does make it likely to be starvation.
Obviously the fuel filter could be restricted. I don't see that listed as one of the things you've replaced but I'm assuming you have.
There is a screen in the fuel heater which will sometimes become restricted.
If there is a restriction from debris it's more likely to be in the tank. There is an inlet filter on the bottom of the tank pickup. When fuel level is lower then fuel has to be drawn through the filter and if it's restricted then it will cause starvation. With the tank full or near full fuel can fill the pickup reservoir from the top so if you find the problem only happens when the fuel level is low and it goes away when the tank is full then a restricted inlet filter is the issue.
Customer: replied 2 years ago.
it does this issue right full or half fuel .
guess i going to have to drop tank . thank you . for your help . better than the last guy .
Expert:  sprinkles08 replied 2 years ago.
You're welcome and good luck with it!