Suspension - Growl, Hum, or Grind At Front When Driving

40 12 03

July 31, 2012

2028396





Vehicle Information

Condition

Growl, Hum or Grind Sound at the Front Wheel Hub and Bearing

The customer may describe a noise coming from the front of the vehicle when driven.

Technical Background

Front wheel hub bearing noise from front suspension.

Vehicles may experience premature front wheel bearing wear, resulting in a growl, hum or grinding noise while driving.

Review wheel and hub and bearing inspection, see Chassis, Suspension, Wheels, Steering, Group 40, in ElsaWeb.

Production Solution

N/A.

Service

Procedure:

1. Road test vehicle for 5 minutes.

2. Was there a growling, humming or grinding sound at the front wheels?

YES: Proceed to step 3.

NO: Continue further diagnosis, this bulletin does not apply.

3. Raise and support vehicle.

4. Replace both wheel hub and bearing assemblies, see Repair Group 40 in ElsaWeb.

Note:
Front wheel bearing hub assemblies must be ordered and replaced in pairs!








Warranty





Required Parts and Tools

No Special Tools required.

Additional Information

All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.