Symptom Chart: NVH
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Actions |
|---|---|---|
| Axle shaft broken | Overload the vehicle | INSTALL a new axle shaft. REFER to: Axle Shaft . |
| Misaligned axle shaft tube | INSPECT the axle for damage. INSTALL a new axle shaft. REFER to: Axle Shaft . CHECK axle shaft tube alignment. INSTALL a new axle housing if necessary. REFER to: Axle Assembly - Vehicles With: Dana M275. REFER to: Axle Assembly - Vehicles With: Dana M300. | |
| Lubricant leaking from the axle shaft | Damaged axle shaft O-ring | INSPECT axle shaft O-ring. INSTALL new axle shaft O-ring if necessary. REFER to: Axle Shaft . |
| Lubricant leaking from the hub oil seals | Plugged vent | CLEAN the axle housing vent. |
| Worn hub seal | INSPECT hub seal. INSTALL new hub seal if necessary. REFER to: Wheel Bearings, Wheel Hub Seal and Wheel Bearing Cups . | |
| Noise while braking - Noises occurring during this condition result from rearward and downward force applied to the suspension and subframe such as rearward force applied to the lower control arm. | Rear wheel bearing(s) | INSPECT rear wheel bearing(s). REPAIR or REPLACE as necessary. REFER to: Wheel Bearings, Wheel Hub Seal and Wheel Bearing Cups . |
| Whine, roar or groan | Axle lubricant low | CHECK the lubricant level. FILL the axle to specification. REFER to: Differential Fluid Level Check - Vehicles With: Dana M275. REFER to: Differential Fluid Level Check - Vehicles With: Dana M300. |
| Loose or damaged wheel bearings | INSPECT the rear wheel bearing(s). INSTALL new bearing(s) as necessary. REFER to: Wheel Bearings, Wheel Hub Seal and Wheel Bearing Cups . |