My truck has a mind of it's own - Ford Powerstroke Diesel Forum
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post #1 of 18 Old 07-10-2014, 03:52 PM Thread Starter
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My truck has a mind of it's own

I was coming home from work today, getting on the expressway, made a right turn on the ramp when my truck started weaving left and right all on it's own almost jerking the steering wheel out of my hand.... SCARY!!! It seemed OK the rest of the way home. Once I got into my subdivision I did a little weave back and forth on purpose and after I straightened it out the steering started jerking back and forth again all on it's own. Is my PS pump giving up on me?? No groaning of whining coming from PS pump. Anyone with any ideas... Please!! 00 F250 44 195000 mi, all stock front end.

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post #2 of 18 Old 07-10-2014, 04:01 PM
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Something's loose (Not the PS pump)

Jack it up and look for play. side-to-side in the steering, up-&-down at the tire (a bar between the ground & tire ~ lift up and watch the BJ's). If everything's tight, take the tire off, push the pads off the rotor, replace the tire and do the 12 & 6 / 3 & 9 check (pump the pads back with the pedal before you put it in gear though )

Too much slop somewhere...
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post #3 of 18 Old 07-10-2014, 04:34 PM Thread Starter
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Thanks, I did all except pushing the pads off the rotor and checking for play in the wheels. That will be next on the list.

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post #4 of 18 Old 07-12-2014, 06:37 AM Thread Starter
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Is it possible a failed hub lockout be causing this darting issue?? Still checking for play somewhere in the front end.

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post #5 of 18 Old 07-13-2014, 03:52 AM Thread Starter
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Quote:
Originally Posted by NoRalPh View Post
Something's loose (Not the PS pump)

Jack it up and look for play. side-to-side in the steering, up-&-down at the tire (a bar between the ground & tire ~ lift up and watch the BJ's). If everything's tight, take the tire off, push the pads off the rotor, replace the tire and do the 12 & 6 / 3 & 9 check (pump the pads back with the pedal before you put it in gear though )

Too much slop somewhere...
I checked everything that was suggested and found nothing loose. I did find the right side hub lockout has failed. I tried to spin the axle by hand on that side without spinning the tire and it seemed to hang up a little. Could that hub lockout be grabbing the axle intermittently and causing the darting issue?? Any other ideas would be greatly appreciated..

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post #6 of 18 Old 07-13-2014, 06:24 AM
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My guess is u joints in the knuckles.

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post #7 of 18 Old 07-15-2014, 05:59 AM
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What's the condition of your Steering Stabilizer? That's what they're there for, to reduce that "Death Wobble" that can get set-up from any play in the steering.
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post #8 of 18 Old 07-15-2014, 06:16 AM
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You really don't need a steering stabilizer on a leaf sprung truck. Leaf sprung trucks really don't get death wobble, it's just a coil spring setup. There is a few people here that don't run stabilizers on their trucks and mine is the stock one and it have up years ago. You most likely have a bad u joint that is binding up on you.

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post #9 of 18 Old 07-15-2014, 06:33 AM
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They will if there's SLOP

The "resonance" can need dampening IF that movement is there. Ford didn't put Stabilizer on there because Nobody ever needed it!
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post #10 of 18 Old 07-15-2014, 08:56 AM Thread Starter
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So its in the shop and they only thing they could find is the tie rod end and the other side (pitman arm????) has slop in them which they are replacing. I jacked er up before I took it in and could not see or feel any slop in the steering components... Anyhow, how would I check the u joints to see if they are binding on me??

The steering stabilizer at the moment is lying on the floor on the garage. Its in good shape and will be going back on the truck tonight. The odd thing about it is the truck acted up with the stabilizer on it. Going to focus on the u joints.

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Last edited by thedon7.3; 07-15-2014 at 09:08 AM.
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