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I have a 2005 F250 that all of the sudden when driving it will start to pull to the right then to the left, back and forth, then it will drive fine. This does not happen when hitting a hole, turning, or anything, just going down a smooth road. I have had it in two shops so far, one gave up, the other replaced the tack bar and it still had problems so they put the old one back on and gave me my money back and gave up. Has anyone else had the same problem? Any sugestions?
Both shops said that the front end is solid. It's not a shake or constant pull to one side. It is a random pull to one side then the other then some times it drives fine. Could this be the steering box?
Sounds like a seized front U joint, BUT we don't know if it's 2WD or 4WD. Same thing happened to me in my 79 Bronco, never could tell what it was going to do, U joint was frozen.
I had somewhat of a simliar situation and it was the brake caliper. It would stick sometimes causing it to pull. Mine did not pull back and forth or pull one way then the other but i thought I would at least throw that out there.
Did you find the problem? I am having the very same problem with my 02SD! The garage found a bad U-joint, but it didn't fix the problem. I suggested the spool valve in the steering box, but he said that wasn't possible. I am headed back to the shop for the 3rd time!
If you're just going straight down the road and it starts doing it, it definitely sounds like the steering box (spool valve) but ... hard to figure out if that really is the problem without replacing the box.
I'm wondering if it's the dreaded wondering that seems to be happening?
Mine does the same. You can be going along just fine, then it wonders left or right. You have to be carefull when you correct it, cause it's easy to over correct, then all is good for a while.
It's REALLY starting to get to me.
I had the fluid in the pump / gearbox flushed. It was pretty bad. I didn't know you have to do this with the SD - it isn't in the recommended maintenance. Ford did publish a service bulletin about it. I am hoping this solves my problem.