Quote:
Originally Posted by JT_3K
Four possibilities
1. Check wheel balancing (most likely)
2. Warped rotors will do this
3. Four wheel alignment
4. Worn suspension components (will cause alignment to float about)
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I tend to disagree with 3 of the 4. . .
Yes, tire/wheel balance, wheel fit to hub, and tire condition will likely be the source of the vibration.
- Because he didn't say "during braking, it shakes" I'll say the brakes are not part of this equation and "warped rotors" would not cause a shake until brakes are applied.
- Wheel alignment: a bad wheel alignment can cause tires to wear unevenly, but in itself will not cause a shake.
-Worn suspension component: Again, the shake is present because something is out of round (think eccentric), out of balance, or in the case of tires, potentially defective. Suspension components
contol movement and will mask imperfections in wheel balance.
Logical steps include:
- Balance the tire wheel combination
- Confirm they fit the hub properly and the lug nut torque is even on each hub.
- if these two items do no correct the issue, wheels could be bent or tires may have a defect. Have the tech watch for wheel/tire run-out during balancing.
If the original wheel/tires are available, put those back on and confirm the problem goes away. Mix and match (if safe to do so) to isolate which tires are causing the problem.
Fronts typically make the steering wheel shake. Back tires typically make your butt shake in the seat.
Were the wheels from a wrecked car? How "Good" of a deal did you get?