Many Problems - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 10-07-2009, 11:23 AM Thread Starter
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Many Problems

I have many problems with my early 99.

When going 55+ there is a bad vibration when throttling slightly. it gets worse when im not throttling it. When i get up around 80, it gets VERY bad, it doesn't matter how i throttle it it vibrates BAD

when the wheel is turned all the way over, and drive slowly, there is a bump... bump... bump... its pretty big.

the Steering wheel jerks *sometimes* when i brake. it also does it sometimes when i accelerate.

I can almost say for sure that a u-joint is bad because when i put it in reverse, or drive there is a big CLUNK. reverse also takes around 2-3 seconds to shift. i think i need the trans fluid changed.

ALSO- it also clunks when i accelerate and let off the throttle, again, i think its a bad u-joint. i tried checking for something, but i dont know what im looking for.

what do you think is wrong?

Diesel Tech in training!!!!

Early 99 Ford F-250: DIY Intake, straight piped, rust mod, dent mod

Last edited by ZombieWeinerDog; 10-07-2009 at 11:38 AM.
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post #2 of 5 Old 10-07-2009, 02:55 PM
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I would start with jacking up the front end and checking everything out. Grab the wheels and check the wheel bearings and ball joints... then just see if anything is loose.

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Quote of the Day:
Originally Posted by Mannysouza View Post
You will get some axle wrap with a heavy trailer, I can feel it when towing my gooseneck with some heavy equipment. My Deavers will wrap enough to make the tires rub the front of the rear fender well if I give it too much throttle on aceleration.
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post #3 of 5 Old 10-07-2009, 03:04 PM
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I agree. Jack it up and look around. You may be right about the ujoint. Any steering stabilizers? Do you maintain yourself or have it done? Is everything lubed?

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post #4 of 5 Old 10-08-2009, 09:15 AM
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Sounds like you may have one or many springs broken. The clicking when you turn sounds like it could be a half shaft or u joint.
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post #5 of 5 Old 10-08-2009, 09:38 AM Rookie
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You definetly have a bad u-joint. I've replaced 4 sets in my 2003 van. Take it out on thr highway and set you cruise control and start down a hill. You will hear the cruise control "bumping" the u-joint trying to keep up with the speed.

Good luck,
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