Symptom Chart: NVH
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Actions |
|---|---|---|
| Axle howling or whine - front axle | Damaged or worn wheel hub bearings | CHECK for abnormal wheel hub bearing play or roughness. REFER to: Front Wheel Bearing and Wheel Hub . |
| Driveline clunk - loud clunk when shifting from REVERSE to DRIVE | Damaged or worn Constant Velocity (CV) joints | INSPECT the Constant Velocity (CV) joints for wear or damage. INSTALL a new halfshaft or driveshaft as necessary. REFER to: Halfshaft . |
| Loose hub nut | CHECK the torque on the hub nut. REPLACE the hub nut if the torque is not at specification. For front hub nuts. REFER to: Front Wheel Bearing and Wheel Hub . REFER to: Halfshaft . | |
| Driveline clunk -- occurs during acceleration or from cruise to coast/deceleration | Damaged or worn Constant Velocity (CV) joints | INSPECT the inner Constant Velocity (CV) joint and boot. INSTALL a new halfshaft as necessary. REFER to: Halfshaft . |
| Loose hub nut | CHECK the torque on the hub nut. REPLACE the hub nut if the torque is not at specification. REFER to: Halfshaft . | |
| Driveline clunk -- occurs as the vehicle starts to move forward following a stop | Loose hub nut | CHECK the torque on the hub nut. REPLACE the hub nut if the torque is not at specification. REFER to: Halfshaft . |
| Clicking, popping or grinding - occurs while the vehicle is turning | Inadequate or contaminated lubrication in the Constant Velocity (CV) joints | CHECK the Constant Velocity (CV) boots and joints for wear or damage. INSTALL new components as necessary. REFER to: Halfshaft . |
| Another component contacting the halfshaft | CHECK the halfshafts and the area around the halfshafts. REPAIR as necessary. | |
| Grunting -- normally associated with a shudder experienced during acceleration from a complete stop | Halfshaft Constant Velocity (CV) joint binding | CHECK the outer Constant Velocity (CV) joint for correct seating into the hub. REPAIR as necessary. REFER to: Halfshaft . |
| Driveline vibration - occurs at cruising speeds | Incorrectly seated Constant Velocity (CV) joint in the wheel hub | CHECK the outer CV joint for correct seating into the hub. REPAIR as necessary. REFER to: Halfshaft . REFER to: Front Wheel Bearing and Wheel Hub . |