Help Diagnose Vibration
06-01-2014, 08:10 PM
#1
Pro
Thread Starter
Help Diagnose Vibration
70-80 mph... smooth above and below. Occurs with two different sets of wheels and tires (Chrome ZR1's w/Cooper's and Fikse FM5's w/Nitto's). New wheel bearing (4), new u-joints (4), newer Bilstein shocks (10k miles). Car was lowered with wedges and bolts. Also a definite pulsation upon braking. Hard to believe it's a wheel balance issue. Warped rotors may be the issue, driveshaft, steering rack? 
Stay Frosty!
Stephen
Stay Frosty!
Stephen
Last edited by smdorsey; 06-01-2014 at 11:17 PM.
06-01-2014, 08:57 PM
#2
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If the vibration only occurs when applying brakes it is most likely a rotor issue, generally rotor do not warp they get hot spots and can be seen as blue spots on the rotors. have them turned or just get new ones.
07-22-2014, 03:07 PM
#4
If you have a lot of run-out on the tire assembly, pull the wheel and check run-out on the rotor the same way. Course, if you have dial-indicator you can do it much more scientifically...
v/r
Last edited by trebor99; 07-22-2014 at 03:18 PM.
