I recently purchased a 2008 Volvo 730, D16, I-Shift, 660k. Since I bought it, I have a vibration at 40MPH and 60MPH. The harshness of the vibration is not consistent, but it is always present at those speeds.
I took the truck to a Love's truck stop and had them check the passenger-side front tire. It checked out fine. Both steer tires are 80% tread and visibly look great. They even broke the tire down to check for a broken belt on the inside of the tire.
Yesterday, I took the truck to another local truck shop and had them check the balance with the tires on the truck. They said the balance was probably close enough but that both fronts were very slightly out of round. They wanted $175 to true the tires but were not confident that would fix the problem. I wasn't ready to throw one hundred dollar bills down the drain, so I passed on that.
When the truck was lifted, we checked bushings/bearings in the front as well.
This does not feel like a driveline vibration due to the frequency of the oscillations. If it was driveline, I think the vibration would be much quicker. It definitely seems like a tire issue to me.
Short of buying a new tire, or tires, what else can I do to isolate this as a tire issue? Can I move a couple of drive tires to the front, temporarily, to test for vibration?
Thanks for your help.
Front End Vibration
Discussion in 'Volvo Forum' started by bmzero, Dec 24, 2014.
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Had that same exact scenario happen to me, coincidently at the same speed as well, and it DID turn out to be a balance issue. Went to a Bauer Built garage---someone that specializes in tires (not a truck stop), and they removed BOTH steers, and balance one (the balance weight was exactly 180 degrees off). The problem went away, and cost $72.00 parts/labor. Beat the hell out of $425.00 or $850.00 for new tires.
Not sure what the rules are on VIRGIN drive tires on the steers....but I know you don't wanna get caught with recaps up there."semi" retired Thanks this. -
There are available wheel nuts that have a sort of a sleeve on the end that actually fits into the stud hole on the wheel. They kind of center the wheel on the hub. I had a similar problem. Went to my tire dealer. He checked out my stuff. He recommended these sleeved wheel nuts. $12 each installed I put every other one on,5 on each side. Problem gone. They have different styles. Buddies of mine got about what I got at the parts store for $8.
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I'll ask about the wheel nuts if I can find a good tire shop close by. Thanks for the recommendations. -
When you said "bushings & bearings" that was also the tie rods for play too? If the ends on the long rod (drag link) have a little play could cause what you have.
Also how many miles on the shocks? if the tires are a little out of round and bad shocks the tires could be bouncing like basket balls at just the right speeds.
Does this also happen with or with out the trailer in tow? Change with weight on the trailer?
I do like the swap front to rear for testing only just be careful you don't get pulled over on the test ride.
Good luck and let us know what it was when fixed.
Dave ---- -
I'm going to take it to a GCR Tires shop Friday. Hopefully they'll be able to diagnose the issue. If they can't, I'll go ahead with the drive tire swap and see how that goes.
I have not had a trailer on it yet. -
My mind went strait to the gutter when i read the title
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Might want to check out M D alignments web page,thy have some great videos on tire problems, also has someone used a radial runout gauge on it? May even want to give them a call, there as good as it gets for tire problems.
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Thanks for the recommendations. I'm taking it to a GCR tire shop this morning. I'll ask them if they have the balancing sleeves and ask about a runout gauge.
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