Subaru Forester Owners Forum banner

1 - 20 of 20 Posts

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #1
I just picked up my 06 FXT and it has about 600 miles on it. When on the highway I get a very noticable vibration in the steering wheel. It seems to only happen between 75 and 80mph. I thought that the front wheels may be out of balence but why is it that if I slow down or speed up past 75mph-80mph there is no vibration? I would think an out of balence front end would cause a vibration from 75mph (when it starts) on up and not go away past 80mph.
 

·
Registered
2001 Forester S 5 MT
Joined
·
304 Posts
I had a similar problem with my 01. At at exactly 100kms I would get a bad shake in the steering. Anyways I had the tires rebalanced and its fine. I also get a shake when the rims plug up with snow.

Check the tire pressures in the tires. Make sure they are the same all around. That might also help.
 

·
Registered
2016 Forester XT
Joined
·
35 Posts
It'll probably be an out of balance or out of round tire, you can have a resonance develop at certain speeds that's damped otherwise.
 

·
Administrator
2004 Forester XT Premium 4EAT
Joined
·
29,458 Posts
Check the tire pressure. Our SVX has developed the same annoying problem lately, and it's always an indicator of unequal pressure in the tires.
 

·
#8 Post ho
1999 Subaru Forester
Joined
·
2,441 Posts
32/31 26/24 depends on driving preferance for handeling/gas milage
 

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #7
Wow. What a difference. I was skeptical at first until I checked the pressure. 24 psi all around. Seriously low. And I was wondering why I was getting 17.5mpg. Anyway, thanks for the advice and it seems all better now, no vibration.
 

·
Registered
Joined
·
192 Posts
it might still be out of balance but the increased pressure has moved the resonance to a higher frequency.

probably doesnt matter but its something to be picky about if you want
 

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #9
Actually, it's back again, and it seems like it's worse. I am going to check my tire pressure again, but I am definitely going to bring it up with the serice center.
 
J

·
Guest
Joined
·
0 Posts
Same problem

I had the same problem on a my new 2006 X this weekend. At about 74-75, terrible vibration in the steering wheel.

I will check the tire pressure, and if not it's going back to the dealer.

I have several other problems they also need to fix... my bad Subaru luck continues.
 

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #11
When I took my XT in for its first oil change I brought it up. They said that they balenced the tires and the vibration is much much less, although it does give me some trouble now closer to 95 mph. But since I don't go over 80mph all that much I have let it slide. Let me know what they say about it. It almost feels like it's not at the tires anymore but something closer to the transmission.
 

·
scarred from battle
Joined
·
730 Posts
It's probably still a balance issue. Vehicle harmonics are really tricky that way.

Bear in mind, most tire balacning machines balance at speeds around 40mph. The fancy ones (Hunter GSP series) balance using a "road force" system, and at higher speeds, but balancing a tire at 95mph requires a degree of sensitivity that's rare. Since you're not supposed to be driving that fast at all anyways, you're going to have a hard time convincing the dealer to re-do everything.

If the problem comes back at more reasonable speeds, then i'd be concerned.
 

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #13
That's exactly what I was going to do.

Originally I had a very bad vibration between 70mph and 75mph. It turned out that the tire pressure was in consistant between wheels and at a low 24psi (straight from dealer). After adjusting pressure it went away for a while but then came back. Took it in to the dealer who balenced the wheels. Seems to be ok other than the high speed vibration.
 

·
scarred from battle
Joined
·
730 Posts
one other thing to consider - the air forces in play at 95mph are drastically different than those at 50, 60, 70, or even 80. Minor aerodynamic issues get magnified greatly, etc.
 

·
Ze flying Russian
2007 STI
Joined
·
2,008 Posts
toddlamp said:
I just picked up my 06 FXT and it has about 600 miles on it. When on the highway I get a very noticable vibration in the steering wheel. It seems to only happen between 75 and 80mph. I thought that the front wheels may be out of balence but why is it that if I slow down or speed up past 75mph-80mph there is no vibration? I would think an out of balence front end would cause a vibration from 75mph (when it starts) on up and not go away past 80mph.
Most likely one or more tires is/are out of balance. I had this problem numerous times before and always that was the issue. Btw, I recently changed tires and made sure the tires are perfectly balanced and the car is dead solid even at triple digit speed. (knocking on wood :) ).

Just remembered, one time it was the brake rotors ... when they are getting older it seems that they are slighly deforming due to heat and cause vibration at higher speed, but this is not your case as the car is new.

And another possible candidate would be ... some chunk of dry mud stuck to the wheel .. this will vibrate your car very much! Make sure the wheels are clean and nothing stuck to them
 
J

·
Guest
Joined
·
0 Posts
Hi. I am from Europe. I had a '84 Subaru and in Germany on autobahn i was driving120-130miles/h. I never had vibrations in steering weel.It is odd this balance machines can not properly balance a tire for any speed you drive.
jcv forester
 

·
Registered
Joined
·
160 Posts
Tire pressure has been the number 1 culprit in my vibration experience.

Remember to check the pressure of your spare at the same time! Before going on a 6 hour road trip recently, I checked the spare, only to discover it was at 16 psi. You don't want to find out that your spare is flat when you really need it!
 

·
Official sf.org decal guy
2006 FXT
Joined
·
12,367 Posts
Discussion Starter #18
I check the tire pressure and adjusted it. The vibration went away, only to return a few weeks down the road. The tire pressure hadn't changed since I adjusted it in the first place. That's what prompted me to take it to the dealer. Although the vibration is much less, it is still noticable at higher speeds. What pressure is everyone running?
 

·
Registered
2011 Forester 4-cyliner, automatic
Joined
·
1 Posts
I just picked up a new 2011 Forester in Connecticut and have a vibration in the steering wheel at all speeds, but the higher the worse it gets. They rebalanced tires and realighned car, but vibration persists - am on my way today to bring back. Can't believe this happens on a brand new car!!! If anyone has had this issue, please let me know if it got fixed. Thank you!!!!
 
1 - 20 of 20 Posts
Top