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#1
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Front End Vibration
Most of my driving is highway, and I remember a time when I thought my SVX had the smoothest ride around. But over the past many months, I get this front end vibration. When I slow down to around 35 mph, it seems like I'm driving on a cobblestone road, its so bad (it doesnt do this All the time, though). I thought it might be that the highway wasnt smooth, but it happens at various places, and I look at other cars when I have this problem and they dont seem to be bouncing up and down like mine. When I'm going around 70 mph, its not that bad, although I still feel some front end vibration. I've had my tires balanced, and a front end alignment. The tires and wheels are relatively new. The brake disks are relatively new as are the pads. I jacked up the front the car and tried to shake each front wheel side to side and up and down, and they didnt shake. I looked over the front suspension and nothing seems loose. So what could it be? Front axle maybe? I miss the way this use to drive. Any help would be appreciated. Thanks.
Larry |
#2
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Re: Front End Vibration
Have you rotated the tires front to back? If not please do and let us know if anything changes. It sounds to me like a uniformity problem with the tires.
__________________
Matt Locker Link 2015 BRZ Limited 6MT 92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting 92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles 19 Subaru Ascent Premium - -Hers !. 89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P. |
#3
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Re: Front End Vibration
My shaking problem went away after changing my struts and changing my oil (it was low a quart). I'm not sure which one solved the problem, but check your oil first.
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#4
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Re: Front End Vibration
I'm pretty good about changing and checking the oil, and it looks fine. And the struts and springs are new. I installed the motorsport springs along with the Koni inserts. The problem existed before I did this install, and still exists. It really seems suspension related. I keep thinking its wheel balancing, so i bought a bubble balancer (hasnt yet arrived) so I can check. Will let you know if its the balancing.
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#5
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Re: Front End Vibration
You mentioned you had a front wheel alignment, is your car AWD? If it is you need to get a four wheel alignment.
__________________
Seth 94' Barcelona Red w/ Tricoat black 2-tone AWD Ls -Sold Mods:AWD conversion/4.44 swap by Budfreak, Custom red interior lights, Custom Satin black dash, Power mode switch, Cold air intake, Permecool tranny filter,Sony xplode 10" sub, Sony xplode 1000w amp, Blitz in-line driver, DDM Tuning 6000k HID's, New paint job/body work by me, 97' Grill, QC shift kit, 17'' MB Motoring rims, 15&20 min mod, front & rear urethane swaybar bushings, Custom fiberglass sub box, Custom red led a/c control unit, perrin lightweight crank pulley, Black wrinkle finish powdercoated intake manifold w/ clear hoses , 02' outback heated/power black leather seats Soon to come:Fiberglass hood, upholster ALL suede to black leather Past subies: 92' Pearl White/black top LS-L-SOLD 96' Legacy Outback-TOTALED 99' Legacy Outback Limited 30th anniversary edition-TOTALED 98' Forester L -Totaled Other toys: 99' Forester S -WRX brake upgrade, soon an 04 wrx motor swap 06' B9 Tribeca-Stock 1982' Yamaha xj650 Maxim Mods: work in progress |
#6
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Re: Front End Vibration
Did you change the strut mounts too? Have your rims checked if they are bent.
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#7
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Re: Front End Vibration
I would hint towards strut mounts as well. (if you hadnt changed them)
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Trevor Avondale, AZ 1992 LS-L Liquid Silver 126k "BXR6" Sold 3/23/13 1992 LS-L Claret 178k totaled 10/26/09 1987 BMW 325is 60% of the time it works, every time |
#8
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Re: Front End Vibration
hi go get your wheels computer balanced ,bubble balancing is only a single plane balance ,most front end parts dont cause wheel shake ,of course a bad axle would but id go the cheap way and balance
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#9
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Re: Front End Vibration
I had the tires balanced by a place that used the Hunter GSP9700 and the problem is still there. They also looked at the suspension and didnt see anything obviously wrong. I'm wondering if it could be the tires (they're relatively new) or the front axle.
Larry |
#10
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Re: Front End Vibration
Quote:
Is the vibration only when braking through about 35 or also when cruising and accelerating through that speed?
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Dave - 03 Baja - 92 SVX - 86 Brat - 08 OB 3.0 |
#11
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Re: Front End Vibration
Yes, I've rotated the tires front to back. And when I swapped out the OEM struts for the Koni inserts, the front mounts really looked pretty good.
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