Vibrations

[Michael42063]

I have a 2000 Yukon SLT 5.3. it has a vibration from about 68 mph till about 80 then stops. Any help would be appreciated. Already lined,new wheels and tires,ujounts ok.

 

[Joseph Garcia]

How did you balance the tires? Did you use a Road Force balancing machine?

 

[Michael42063]

How did you balance the tires? Did you use a Road Force balancing machine?

No,I did not,

 

[Michael42063]

No, I had them spin balanced, actually twice

 

[OR VietVet]

Vibration before or after the listed work?

 

[Big Mama]

X3^^^^^^

 

[Joseph Garcia]

No, I had them spin balanced, actually twice

My recommendation is that you get your tires Road Force balanced. I had the exact situation as you do, including 3 tries with a conventional spin balance machine, and the Road Force balance made a huge improvement. Other folks on this Forum have seen similar improvements.

 

[Bill 1960]

There’s a lot missing.

Was the vibe present before, or after, the new wheels and tires? Or always there?

What ARE the wheels and tires specifically? Are the wheels hub centric if not OEM?

Do you feel the vibration in your seat, or the steering wheel?

Road Force is a good technology. Finding a shop that will use it properly is not easy, most will take shortcuts and just spin them 1x after mounting and call it good.

The proper way is to spin only the wheel first and the machine measures runout and balance. THEN mount the tire and repeat for the whole assembly. After that, break the bead AGAIN and rotate the tire on the wheel so the wheel and tire heavy or high spots are opposed. Re-inflate and FINALLY do the weights and RF match. It’s time consuming which is why few shops want to do the complete process.

There’s also the method of spinning and balancing mounted on the vehicle. Which in my experience is the gold standard in vibration elimination. But very difficult to find a shop with the equipment or skills to do this old school technique.

 

[Joseph Garcia]

There’s a lot missing.

Was the vibe present before, or after, the new wheels and tires? Or always there?

What ARE the wheels and tires specifically? Are the wheels hub centric if not OEM?

Do you feel the vibration in your seat, or the steering wheel?

Road Force is a good technology. Finding a shop that will use it properly is not easy, most will take shortcuts and just spin them 1x after mounting and call it good.

The proper way is to spin only the wheel first and the machine measures runout and balance. THEN mount the tire and repeat for the whole assembly. After that, break the bead AGAIN and rotate the tire on the wheel so the wheel and tire heavy or high spots are opposed. Re-inflate and FINALLY do the weights and RF match. It’s time consuming which is why few shops want to do the complete process.

There’s also the method of spinning and balancing mounted on the vehicle. Which in my experience is the gold standard in vibration elimination. But very difficult to find a shop with the equipment or skills to do this old school technique.

Geeezzz... Balancing the tires on the vehicle, the original 'spin' balance. I have not seen that method used in over a half a century. And, I do agree, after watching this method several times, that experience and skill is definitely required to be successful with that method.

 

[OR VietVet]

I ran a shop once where we did the balancing on the vehicle and only 2 guys could do it correctly. I was not one of them.