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Home >> Ford >> 2018 >> Focus SEL, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 210 (Noise, Vibration And Harshness) >> Diagnosis And Testing >> Noise, Vibration and Harshness (NVH) >> Symptom Charts >> Symptom Chart-Tire-Speed Related Vibrations

Symptom Chart-Tire-Speed Related Vibrations

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Any assembly that is out of balance will only cause a first order vibration, it will not cause a higher order vibration.

When a vehicle-speed related vibration is present, both tire-speed related vibration and axle shaft-speed related vibration calculations should be carried out.

Condition  Possible Sources  Actions 
First order tire vibration Tire or wheel Symptom Chart: NVH REFER to: WHEELS AND TIRES .
Wheel bearings Symptom Chart: NVH REFER to: Suspension System . REFER to: Rear Suspension .
Driveshaft Symptom Chart: NVH REFER to: Driveshaft .
Brake rotor or drum Symptom Chart: NVH REFER to: Brake System .
Second order tire vibration Tire or wheel Symptom Chart: NVH REFER to: WHEELS AND TIRES .
Third order tire vibration Tire or wheel Symptom Chart: NVH REFER to: WHEELS AND TIRES .
Drive Axle Symptom Chart: NVH REFER to: Front Drive Axle .