Help, My 2k SE has a bad vibration coming through the steering wheel when driving over 60mph. It all started about the time I got my tires rotated. I thought the tires were out of balance so I got that checked and fixed but it did not help. The vibration is very inconsissant. Sometimes it will vibrate while accellerationg or deceleration in turns or just driving straight. Sometimes it will shake for miles and then just stop. I thoght that it could be different paved surfaces but it will stop and start on the same surface conditions. The vibration is not extremely sever but it is bad enough to be aggervating and I know it is not normal. The only other possibilities that I can think of are alignment problems but the car is driving straight or uneven tire ware. I have cooper lifeliner 225/50 17 tires with about 7000 on the tires when rotated. Any other ideas could be helpful.
Thanx.

 

Sounds like the shop where you got your tires rotated still didn't balance them properly. Some shops' balancing machines just suck I guess.

 

http://www.gsp9700.com/

Supposedly this tire balancing machine is one of the best you can find... and they offer a service to locate shops around your area that carry this machine.
If the shop you already went to doesn't have one of these, maybe try another shop that does. Besides that, it's possible you could have a bent rim causing these problems too...

 

could be operator error too.... who knows if they are putting the right amount of weight in the right location....

sounds like a rim is bent. Maybe it was in the back, and when they rotated the tires it got put up front, making it more noticable. A good shop should have been able to tell you that.

Have you hit any potholes that turn on the wipers? OR make you spill your beer? those are usually signs that the pothle is big enough to bend the rim.

 

nissan crappy rotors
must be

 

I had the same thing happen to me. It turns out the tech didn't tighten the hub bolt. Why they had to take it off is beyond me. It ended up destroying the wheel hub assembly. Nissan fixed it under warranty. The vibration was intermittent(sp). Varying speeds and RPM. It took 3 trips to get it fixed b/c Nissan didn't want to take responsibility for the problem at first. After showing them my $2100 ext warranty papers, they fixed it. hope this helps.

 

Thanks guys, i am gonna take the car back to the shop on monday and have them look at it.

 

Did they do a static balance only?? Make sure the dude who is using the machine has it set up properly for dynamic balancing as well. This part takes care of any side to side balancing issues which can cause steering wheel oscillations at certain speeds.

 

I don't know how they balanced it. I saw them put all four on the machine and they said my RF was off .75 oz and one of my rears were of .5 oz. They replaced the weights that were already on the rim and that was it. Do you think that uneven tire ware could be the problem?

 

Sounds like tireshop were sloppy balancing your wheels. Have them rebalance your wheels.

 

If you took the car to a shop with a Hunter 9700 Road Force Analyzer and all they did was re-set the weights, they definitely dont know how to use that machine...

When properly trained, the operator of the the Hunter 9700 will measure the out-of-roundness of the rim proper by holding the little disk wheel that's attached to the end of the aluminum 'arm' that protudes from the roller (wheel) side of the machine & driving the wheel assembly thru a couple revolutions.

Then the machine -which remembered how out of round the whole assembly was when it was doing the Road Force Analysis- will pictorially show the operator where to move the tire on the rim (deflate, slide the tire on the rim and re-inflate) so as to maximize the total concentricity.

In simple terms, this machine matches the high point on the tire with the lowest point on the rim to ensure the best possible concentricity, hence lowest 'road force'.

If your tire/wheels are showing more than 15-20 lbs of road force, this is why you are shimmying. Go find a shop that has a 9700 -and knows how to use it.

 

my 2k does the same thing at speeds of 50-60 + mph. vibrates the car and through the wheel. not all the time though.

i thought it was bad balance as well, but have had it redone several times = no effect. several alignments as well = no effect. it is NOT a bent rim because i recently installed new wheels = no effect.

i have just learned to deal with it. please let me know if you find out what is causing it for sure.

 

The guys at the shop checked the balance again and it was fine. They just have a basic balance machine. They rotated my tires back to their original position and the shimmy was gone. But, I will try to find a shop that has a 9700.

 

could be a bad wheel bearing.....though that's alongshot.

 

Motor mounts (maybe)

 

I had a bad bearing at 60 to 70,000 miles drivers side
extended warrenty took car of that 50 bucks