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Old 04-17-2013, 02:32 PM   #1
joker75
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Member#: 168516
Join Date: Jan 2008
Chapter/Region: RMIC
Location: SLC, UT
Vehicle:
2008 Imprexa 2.5i
Spark silver

Default 2008 2.5i suspension problems.

Hopefully someone here can shed a little bit of light on a problem that I seem to have acquired. I recently had new tires installed (BF Goodrich Advantage T/A) and had an alignment done at the same time. Unfortunately I don't have the exact specs, but the ones I saw while they were working on it, showed the toe no more than .014 to .02 off of zeroed. The front camber was as close to zeroed as they could get it. The rear camber was 0.8 on the left and 2.1 on the right, sorry that I don't know if these are positive or negative. Unfortunately there does nto appear to be a way to adjust the camber on the rear without spending quite a bit on adjustable lateral links. so they were just left where they sat.

Now for the problem. The day after getting the new tires and alignment, I noticed that on the freeway my car feels like I am driving in a wind storm. It will dart side to side just enough to drive me nuts. It doesn't move far enough to leave a lane and the steering wheel does not seem to move at all. It sort of feels like it wants to follow the worn grooves in the lanes.

I noticed a few days later that the rear inner control arm bushing on the front control arm is starting to tear apart. I just received some new bushings and will install them soon. Does anyone have any thoughts on whether replacing the bushings will help withe the problem of my car moving side to side on the freeway, or if it is more likely from the alignment, or even the new tires.

I tried asking in the suspension section, but no one seems to have any answers. I'm hoping the RMIC crew can help.
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Old 04-18-2013, 01:43 AM   #2
UVRUGBY
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Member#: 343303
Join Date: Jan 2013
Chapter/Region: RMIC
Location: Utah
Vehicle:
2008 Impreza 2.5
Silver

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Depending on the section of freeway your talking about, there are cuts made in the freeway that are close to each other, and aren't perfectly straight, they are curvy. I have noticed my car do this in only 2 sections of freeway, heading north and south on i15 near 114th south exit, and heading north on i15 at pioneer crossing as the bend starts under the bridge, and continues till after the old freeway joins with the new freeway. I know it isn't my car because I have felt it with 4 other vehicles, a 4g eclipse, sx4, and a dodge 2500, and a motorcycle- which was the scariest one because it was just after they finished the new i15 at pioneer crossing exit and it was in the bend. Scarred the **** out of me.

Now I'm not saying that it can't be from your worn bushings, but just letting you know it isn't just your car, it is the freeway.
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Old 04-18-2013, 03:08 AM   #3
chet24
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Join Date: Mar 2012
Chapter/Region: RMIC
Location: Kamas, Utah
Vehicle:
09 WRX
Dark Gray Metallic

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I-80 right around sugar house? My 2.5i used to do the exact same thing, right when I changed the tires, I had yokohamas. I don't think it's a problem or defect, but the tires following curves in the road, somehow becoming noticeable through the AWD. It probably isn't that, but it's how I justified it.
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Old 04-18-2013, 07:06 AM   #4
joker75
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Chapter/Region: RMIC
Location: SLC, UT
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Spark silver

Default

Thanks for the help guys. I live in the south end of the valley and the section of I-15 right around 114th is definitely where I have noticed the worst, but it does it at other areas as well. I got one of the bushings installed last night, but didn't have time to get the second one on. I noticed that a lot of members are suggesting to run negative camber on the front and was wondering if that would make this less noticeable. My biggest concern was that I never noticed this at all on my old tires prior to the alignment change. Lastly, does anyone know of a reputable garage that can redo or at least double check my alignment if replacing the bushings doesn't help. Maybe I could just pick their brain for a minute and see if it would even help.

Thanks again for the information.
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Old 04-18-2013, 11:23 AM   #5
chet24
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Dark Gray Metallic

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Innovative Garage is the place to get alignments in SLC. At least racing ones, but they do a good job.
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Old 04-18-2013, 07:11 PM   #6
joker75
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Join Date: Jan 2008
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Location: SLC, UT
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Spark silver

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I'm pretty sure someone else pointed me toward Innovative too. Sounds like I better hunt down a number for them.
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Old 04-18-2013, 07:20 PM   #7
Himynameisgreg
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Member#: 200420
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Location: Park City, UT
Vehicle:
'08 DGM 2.5i Sedan
'05 AW STI Track Car

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Old 04-22-2013, 02:57 PM   #8
aclver1
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Location: SLC utah
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2004 Impreza 2.5rs
70 Datsun Fairlady

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Are your new tires wider and did you change wheels with a different offset when you got tires? Wider tires or a more negetive offsets in your wheels will make it track and follow lines and cracks in the road. You can add caster and that will help keep your tires from following every crack on the roa but I would change the bushing for sure, it might not be that cause of the issues but you dont' want worn bushing and get a better alighment. +1 for innovative, Jason is awesome.
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Old 04-22-2013, 03:55 PM   #9
joker75
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Join Date: Jan 2008
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Location: SLC, UT
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2008 Imprexa 2.5i
Spark silver

Default

Quote:
Originally Posted by aclver1 View Post
Are your new tires wider and did you change wheels with a different offset when you got tires? Wider tires or a more negetive offsets in your wheels will make it track and follow lines and cracks in the road. You can add caster and that will help keep your tires from following every crack on the roa but I would change the bushing for sure, it might not be that cause of the issues but you dont' want worn bushing and get a better alighment. +1 for innovative, Jason is awesome.
Stock size tires on Stock rims. The only thing that changed was the brand of tire and the alignment. I know that the front camber was pretty off, .7X RF, and 2.X LF. They said that both of the wheels were leaning the same direction when they started. Like this / /.

Thanks again for the information everyone, I just need to find a few hours of time to get the second bushing installed, and I'll get a hold of Innovative and see what they suggest.
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