The numbers below refer to the step numbers in the diagnostic table:
A buildup of foreign material on a tire and wheel assembly and/or a damaged, abnormally or excessively worn tire and wheel assembly could cause a vibration disturbance.
Tire and wheel assemblies that exhibit excessive runout when measured while mounted on the vehicle, may or may not be contributing to, or causing a vibration disturbance. On-vehicle runout, if present, could contribute to, or cause a vibration disturbance, but the cause of the on-vehicle runout may not be the tire and wheel assemblies.
Force variation may be present in a tire and wheel assembly that exhibited acceptable balance and runout. Force variation, if present, could contribute to, or cause a vibration disturbance.
Vibration disturbances could be affected by, or possibly caused by, components that are susceptible to steering input and/or torque-load input.
Step | Action | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|
1 | Has the Vibration Analysis - Road Testing table been completed? | Go to Step 2 | |||||||
Visually inspect the tire and wheel assemblies for the following:
Refer to Tire and Wheel Inspection . Do any of the tire and wheel assemblies exhibit any of the conditions listed? | Go to Step 3 | Go to Step 4 | |||||||
3 |
Did you complete the repair or replacement? | Go to Step 18 | -- | ||||||
Measure the on-vehicle runout of the tire and wheel assemblies. Refer to Tire and Wheel Assembly Runout Measurement - On-Vehicle . Does the runout measurement indicate a runout concern? | Go to Step 5 | Go to Step 8 | |||||||
5 |
Does the runout measurement still indicate a runout concern? | Go to Step 6 | Go to Step 18 | ||||||
6 |
Is there debris between any of the tire and wheel assemblies and the hub surfaces? | Go to Step 7 | Go to Step 8 | ||||||
7 |
Does the runout measurement still indicate a runout concern? | Go to Step 8 | Go to Step 18 | ||||||
8 | Is the vehicle equipped with 19.5 inch wheels? | Go to Step 9 | Go to Step 15 | ||||||
9 | Inspect the balance of the tire and wheel assemblies. Refer to Tire and Wheel Assembly Balancing - Off Vehicle . Are any of the tire and wheel assemblies out of balance? | Go to Step 10 | Go to Step 15 | ||||||
10 | Balance the tire and wheel assemblies as necessary. Refer to Tire and Wheel Assembly Balancing - Off Vehicle . Were you able to achieve balance? | Go to Step 18 | Go to Step 11 | ||||||
11 | Replace the wheel. Refer to Tire Mounting and Dismounting . Did you complete the replacement? | Go to Step 18 | -- | ||||||
12 |
Does the runout measurement still indicate a runout concern? | Go to Step 13 | Go to Step 18 | ||||||
13 |
Does the runout measurement still indicate a runout concern? | Go to Step 17 | Go to Step 14 | ||||||
14 | Replace the affected wheel. Refer to Tire Mounting and Dismounting in Tires and Wheels. Did you complete the repair? | Go to Step 18 | -- | ||||||
Inspect for radial and lateral force variation. Refer to Tire and Wheel Assembly Isolation Test . Were you able to isolate one or more of the tire and wheel assemblies as the cause of the disturbance? | Go to Step 16 | Go to Step 17 | |||||||
16 | Replace the tires and/or wheels as necessary. Refer to Tire Mounting and Dismounting in Tires and Wheels. Did you complete the replacement? | Go to Step 18 | -- | ||||||
Perform the Vibration Analysis - Hub/Axle Input table. Refer to Vibration Analysis - Hub and/or Axle Input . Did you find and correct a condition? | Go to Step 18 | ||||||||
18 |
Is the vibration still present? | Go to Step 2 | System OK |