update of F250 problems - Ford Powerstroke Diesel Forum
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Old 12-27-2007, 06:45 PM
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update of F250 problems

Hi, hopefully someone can help me. I have had my truck for about 2 months and have had problems. My fuel mileage is crap. It started out about 13 mpg and has since fallen to about 8-10. I have replaced glowplug relay and new seals in fuel filter drain valve and also fuel filter. Now my truck will unexpectedly start vibrating down the road out of the blue and turn to a more severe shake that I can feel in the steering wheel. It drives straight when doing this and the tranny will still down shift if I want it to. The dealer that I bought it from showed me $1600 in reciepts for front end work, brakes and tires, and most of the time it drives great. The weird thing is when it starts to shake, when it stops a mile or so later, its like I get a sudden surge of power. One thing that I have noticed is that my truck sometimes doesnt feel as if it coasts like it should. Its like it has something holding it back, almost like a vehicle feels like when the front end is locked in or a person is driving with their brakes on.. My truck is a 2000 F250 4x4 with about 140,000 miles. Engine wise it seems like it runs as it should. I have had it hooked up to a scanner and their is no codes. Any help is appreciated. Thanks, Jayme

----- I have to update my previous post----
I took the truck for a drive a little bit ago and my problem has gotten much worse but I learned something in the process. As I said before it definetely feels as if something is holding the trucks power back. It got so bad that the truck had to downshift and run close to 3000 rpms to go about 45 mph, I tried putting it in neutral and it still felt as if something is dragging. Is it possible that my front axle is somehow engaging or that the brakes are partially locked even though it doesnt pull to the left or right? when I got close to home whatever the problem was released and the truck would coast like it is supposed to and I had tons of power. I checked for excessive heat at my wheels and it was not hot but warm .I'm definetely taking it back to the dealer, but any help is appreciated. Thanks
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Old 12-28-2007, 05:32 AM
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Next time you have the problem, feel the rearend where the pinion shaft is and see if it is hot. Should be a little warm but not hot. I have seen the pinion bearing to cause your symtoms. Also feel were the axle housing goes into the rearend housing that can give you a start.
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Old 12-28-2007, 09:28 AM
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it may be a bad cam sensor too'
it was recalled by ford in March of 2007
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Old 12-30-2007, 03:41 PM
jcs jcs is offline
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I have a similar problem in fact i jacked up the rear axle and the tires would not turn freely then i unbolted the driveshaft and the tires spun with no problem i'm thinking it might be my transfer case or tranny but im not sure were to go from here to find out for sure
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Old 09-19-2008, 08:51 AM
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JJ

Did you ever figure out what the deal was? I am having the same issue on my '99. Just pulled the front brakes out and the LH brake was tight as hell? I see nothing else wrong? Guess I'll put it back together drive it and check that rear pinion? I'm lost!
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Old 09-19-2008, 01:33 PM
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master cylinder was shot, replaced it and problems went away.
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