Steering Wheel wobble at highway speed
11-15-2010, 03:59 PM
#1
Track Day
Thread Starter
Steering Wheel wobble at highway speed
Trying to get some ideas on things to resolve my steering wheel wobble problem. To bring everyone up to speed the car is a 1995 993 with 98k. I have owned the car since january, and the steering was fine then at any speed. I have only put 2000 miles on it since i bought it, driven about once a week for local trips to work and back about 20 minute trips on the highway.
Recently in the past 2 months, the car has a steering wheel wobble from 58 - 65 mph. My first thoughts were tires out of balance, so i had them rebalanced, the issue is still there.
Car is 100% stock suspension, what other non-expensive areas should i look at first. Trying not to break the bank here, as i have plans for pss10's in the future.
Thanks in advance for the suggestions.
Steve.
Recently in the past 2 months, the car has a steering wheel wobble from 58 - 65 mph. My first thoughts were tires out of balance, so i had them rebalanced, the issue is still there.
Car is 100% stock suspension, what other non-expensive areas should i look at first. Trying not to break the bank here, as i have plans for pss10's in the future.
Thanks in advance for the suggestions.
Steve.
11-15-2010, 04:18 PM
#2
Three Wheelin'
Similar problem, but mine is at about 10mph slower. I have been told tire balance from a couple, but the general consensus here seems to be the control arm bushings, as the cars are aging and getting higher mileage. That said, I am putting replacing the lower control arm bushings tomorrow (and will have the tire balance checked for good measure).
11-15-2010, 04:32 PM
#3
Racer
+1 on the bushings. Do a search on control arm bushings and you will come up with a few threads. It is just the rubber on the control arms that is old and worn out. I installed Chris Walrod's bushings on my '95 and it was a noticeable difference. Now the car is more stable at all speeds.
11-15-2010, 04:49 PM
#4
Rennlist Member
Probably the control arm bushings but check the front wheel bearings for excessive play. BTW, just because a tire/wheel assembly is in balance doesn't mean it can't have excessive lateral run-out or wheel hop. A Hunter "Road Force" balancer can sometimes cure tire issues.
11-15-2010, 05:06 PM
#5
Race Director
For those of you who've just changed the bushings, is a new alignment required?
11-15-2010, 05:38 PM
#7
Track Day
Thread Starter
I have been told it could be flat spots since i dont drive the car that often. But it doesn't seem to go away after driving a while, so i am inclined to rule that out.
NC trackrat,
There is a shop down the road from my house that has a hunter "Road Force" balancer i will give that a shot first.
I have been looking around and many threads say to change out the control arms completely, because the bushings and ***** joints are not servicable, how accurate are those statements since there are also several posts that say otherwise.
NC trackrat,
There is a shop down the road from my house that has a hunter "Road Force" balancer i will give that a shot first.
I have been looking around and many threads say to change out the control arms completely, because the bushings and ***** joints are not servicable, how accurate are those statements since there are also several posts that say otherwise.
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11-15-2010, 06:34 PM
#8
Racer
As long as the tire is in good condition the flat areas from sitting go away. It usually takes 5 or 6 mile on the highway for me before the tire smooth out.
I have been told it could be flat spots since i dont drive the car that often. But it doesn't seem to go away after driving a while, so i am inclined to rule that out.
NC trackrat,
There is a shop down the road from my house that has a hunter "Road Force" balancer i will give that a shot first. I have been looking around and many threads say to change out the control arms completely, because the bushings and ***** joints are not servicable, how accurate are those statements since there are also several posts that say otherwise.
NC trackrat,
There is a shop down the road from my house that has a hunter "Road Force" balancer i will give that a shot first. I have been looking around and many threads say to change out the control arms completely, because the bushings and ***** joints are not servicable, how accurate are those statements since there are also several posts that say otherwise.
Walrod bushings
11-16-2010, 04:00 PM
#12
Three Wheelin'
Well, my problem was badly worn tires... Raising the car up to ROW height from RS (the RS uprights weren't installed when it was dropped) and will help with bad tire-wear. Still getting the bushing installed too--just a matter of time at 105k miles.
11-16-2010, 04:14 PM
#13
Drifting
Does touching the brakes make any difference? When I got my 96 coupe a couple years back the symtoms mimicked warped rotors, i.e. bad shimmy when hitting the brakes, new bushing and all was good, didn't need the rotors changing. On my 97 with only 46k miles the shimmy was there as you are describing with your car, new bushing and presto, smooth.
11-16-2010, 04:57 PM
#14
Seared
Rennlist Member
Rennlist Member
+1 on the bushings. Do a search on control arm bushings and you will come up with a few threads. It is just the rubber on the control arms that is old and worn out. I installed Chris Walrod's bushings on my '95 and it was a noticeable difference. Now the car is more stable at all speeds.
Andreas
11-16-2010, 05:23 PM
#15
Race Director
Do the Walrod bushings require maintenance that the OEM bushings do not, e.g, lubrication???