Intermittent vibration at speed 2WD.

[nuttinph]

Hi all, I am new to the PowerStroke.Org boards.

The knowledge here seems substantial, so perhaps someone can shed light on my drivetrain issue.

Truck: 2001 F250 Crew Short Bed 2WD 7.3L Auto Trans. 170,000miles

Symptoms: Intermittent wobble, apparently from the front driver's side wheel.
This tire is wearing on the outside edge in a rounding fashion (not a taper).
Vibration starts around 70mph and lasts until about 80mph. Taking a corner at those speeds sets off the vibration (either right or left turn). Vibration tends to continue once traveling straight until either a bump or substantial change in speed. However, no significant vibration at other speeds. No clunking noises.

Friends RV shop checked brakes and the front end. They reported nothing seemed worn or loose.

BTW: The problem is completely, predictably, reproduceable.

Before I start guessing and replacing parts. I thought I would see what you all think. I did not see anything in the forums that matches particularly closely. Of course, I may have missed it too.

Thanks for your guidance!

Mark

[smprestin]

I have been chasing the same vibration it sounds like. I have checked everything i could think of. I still have the auto hubs, with the frontend jacked up spin the wheel I could hear what sounded like the bearing failing but it was actually the lockout not disengaging all the way. Pulled the lockout out noise went away. Put it back in and manually locked it in, drove it and noise is gone. Hopefully this help you.

[nuttinph]

Thanks for providing your experience! I have seen a few mentions of an almost identical set of symptoms for 4 wheel drive trucks all of which were related to some 4 wheel drive components. Unfortunately, mine is 2 wheel drive.

Mark

[gregorygant]

I have this EXACT same issue, did you ever find anything conclusive?

thanks
GG