Symptom Chart: NVH
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS .
NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms,
REFER to: NOISE, VIBRATION AND HARSHNESS (NVH) . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, REFER to: NOISE, VIBRATION AND HARSHNESS (NVH) , for the next likely system and continue diagnosis.
| Condition | Possible Sources | Actions |
|---|---|---|
| Wobble or shimmy | Bent wheel | INSTALL a new wheel as necessary. |
| Damaged tire | INSTALL a new tire as necessary. | |
| Loose wheel nuts | TIGHTEN to specification. | |
| High-speed shake | Tires/wheels | REFER to RADIAL RUNOUT MEASUREMENT - LOADED HUNTER ROAD FORCE® METHOD or RADIAL RUNOUT MEASUREMENT - DIAL INDICATOR METHOD . |
| Vehicle vibration | Tires/wheels | REFER to RADIAL RUNOUT MEASUREMENT - LOADED HUNTER ROAD FORCE® METHOD or RADIAL RUNOUT MEASUREMENT - DIAL INDICATOR METHOD . |