Tire waddle is a side to side movement at the front of the vehicle and/or
the rear of the vehicle. The waddle can be caused by the following conditions:
• | A steel belt not being straight within the tire (broken or shifted
belt) |
• | Excessive lateral runout of the tire |
• | Excessive lateral runout of the wheel |
The waddle is most noticeable at a low speed of about 8 to 48 km/h
(5 to 30 mph). The waddle may appear as ride roughness
at 80 to 113 km/h (50 to 70 mph).
The waddle may appear as a vibration at 80 to 113 km/h
(50 to 70 mph).
Inspection Procedure
- Raise the vehicle.
- Support the vehicle with safety stands.
- Perform the following preliminary inspection:
3.1. | Wear gloves when inspecting the tires in order to protect against
the possibility of the steel belts sticking through the tire. |
3.2. | Index mark the tire with a crayon in order to note the start and
the stop position. |
3.3. | Rotate each tire and wheel by hand. |
3.4. | A broken or shifted belt will appear as a twist or a bump in the
tread. |
- You may use tire substitution in order to identify the faulty
tire. Perform the following steps for a tire substitution check:
4.1. | Use a comparable tire in order to replace each tire, 1 at a time. |
4.2. | Test drive the vehicle. |
4.3. | You will eliminate the problem when you remove the faulty tire
from the vehicle, if the problem is tire and/or wheel related. |