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Upgraded to 17inch Wrangler SRA but now the car wobbles on Hwy

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h3nry8888

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Discussion starter · #1 ·
:doh:I originally had the 16 inch Steelies with the Good Year SRA.

I upgraded to the Jeep 17inch Alloy 5 Spoke Rim with Brand new Good Year Wranger Tires (P205/65r17)

Now when I hit 110km or more the steering wheel wobbles/vibrate. You feel it abit in the car but its the steering wheel that I notice it more on.

Any suggestions?

The tires are brand new, installed and balanced by tire shop. Though the RIMS came from a Auto Wrecker place and they say the RIMS have been tested. (Standard Auto Wreckers and Carcones).

Can that be an alignment? Can it be warped Rims? If so wouldn't the balance machine pick that up?

Thanks for the help!
 
#5 ·
You might want to ask the tire shop to check the rims (and tires) for runout.

From http://www.aa1car.com/library/wheel_balancing.htm
WHEEL & TIRE RUNOUT VIBRATIONS

Sometime wheels will still shake and vibrate even after they have been carefully balanced. The problem is often excessive wheel runout or tire runout. Most tires should have less than .030 to .050 inch of runout. An out-of-round tire can produce harmonic vibrations that come and go at various speeds depending on how many "humps" are in the tire.

As a rule, most steel rims should have less than .050 inch of runout, or .040 inch of runout if the rims are aluminum alloy. Some trucks and SUVs can tolerate up to .060 inch of radial and lateral runout, but others can't handle any more than .030 inch of runout before vibrations become noticeable.

Runout problems can often be corrected by "match mounting" the tire on the wheel (rotating the tire so the tire high spot is over the rim low spot).
Click to expand...
 
#6 ·
All good advice. Most times a shimmy felt in the steering wheel, in FWD vehicles, is caused by the lug nuts not all being torqued the same, as Heckler said. Especially if you only feel it at a certain speed, usually highway speeds. A couple times when it's happened to me at was somewhere between 65 and 70 MPH that I felt it. It's an easy free fix too, at least check the torque to be sure.

In some wider wheels, a lot of times, they need balance weights on both the inside and outside, evenly, or you can feel it in the wheel at certain speeds.

Let us know what resolves this for you.
 
#7 ·
Same Problem.

I too just got a set of 225/65/17 Geolanders put on and now it seems that i have a shimmy in the steering wheel. They did say that i have bad lower ball joint on the driver side and a bad outer tie rod on the passenger side. Could this be reason for the shimmy.
 
Discussion starter · #8 ·
I didnt use a torque wrench, thought i just tighten them all evenly.. :)

though i switch one of the tires to the back and guess what.. problem went away.. its in the back but you dont feel it as much as front. I am still going back. My mechanic buddy told me up to 80km a hour.. your shock will absorb it. After that.. you will feel it at 110km +.

I will take back to tire shop.. its either tire DOA or Rims warped.

Will update you all.

And I have all tires pumped to 40PSI.. to save Gas and because at 35PSI, the tires look flat like im on the sidewall!!!
 
#10 ·
h3nry8888 said:
Also, weights are installed both inside and outside!
Click to expand...
If there's a lot of weight on the rim, ask the tire shop to break the tire off and spin it 180 deg. and re-inflate and balance. I used to install tires at Sears decades ago and sometimes you get the heavy spot on the rim aligned with the heavy spot on the tire. Anytime I saw more then 4-5 oz. for balance, I always broke the bead and spun the tire 180. Usually it would then only need 1/4 to 1 oz. of weight to balance it.
 
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todde702
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