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Old 03-28-2010, 03:00 PM
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acceloration problem

Ok, My in-laws are driving my 05 250 up to Michigan from Florida. They made it all the way up to northern Ohio without any problems. They filled up the tank and after about a quarrter tank the truck wont really go above 60. When they try to accelerate it is almost like it is starving for fuel. It drives fine at 55 with about 1800 rpms but above that it starts to have the issues.

What should I check for once they get up here. Could it be as easy as a clogged fuel filter?

Thank you for the help in advance
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Old 03-28-2010, 06:00 PM
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i would say either a fuel filter or bad fuel or check the air system for excess oil. i had alot of oil in my intercooler and degreased it and gained alot of power back.
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Old 03-29-2010, 03:53 AM
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OK, here is an update, I tried to drive it to work this morning and it wouldnt shift out of 3rd gear and wouldnt get above 30 mph. It would also stall out when I came to a stop some of the time. When I would go to start it again it would take about 5-10 seconds to actually start.
Also I didnt see any smoke or anything coming out of the exhaust but it was still a little dark out.

I am drawing blanks on what to check.
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Old 03-29-2010, 04:16 AM
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im betting it needs some duel filters i bet they got a bad tank of fuel. or a healthy dose of water in it.
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Old 03-29-2010, 04:20 AM
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Sorry if this is a dumb question, but what do I do next, besides check the filters, do I have to drain the tank?
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Old 03-29-2010, 04:22 AM
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i would pull fuel filters and check them first if the hfcm is full of water i would drain the tank. if they are just relly dirty id just change the filters and then check fuel pressure. either way i would check fuel pressure before doing anything. that can tell you if its fuel related or electrical.
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Old 03-29-2010, 04:24 AM
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ok, thanks
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Old 03-30-2010, 04:29 AM
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Just as an update, it was just a clogged HFCM. I am thankful that was it. The truck runs great not. It looked like the filter had never been changed and it has 95K on it.
Thank you for all the help.
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