Ford Mustang (1999-2004) Service Manual: Gear Howl and Whine

Howling or whining of the ring gear and pinion is due to an incorrect gear pattern, gear damage or incorrect bearing preload.

Wheel Hub or Axle Flange Face Runout
NOTE: If the axle shaft assembly is removed, check runout of the shaft itself. The forged (unmachined) part of the shaft is allowed to have as much as 3.0 mm (0.120 inch) runout. This alone will not ...

Bearing Whine
Bearing whine is a high-pitched sound similar to a whistle. It is usually caused by worn/damaged pinion bearings, which are operating at driveshaft speed. Bearing noise occurs at all driving speeds. ...

Other materials:

Using snow chains
WARNING: Driving too fast for conditions creates the possibility of loss of vehicle control. Driving at very high speeds for extended periods of time may result in damage to vehicle components. WARNING: Snow tires must be the same size, load index, speed ratin ...

Touchscreen climate controls
Press the CLIMATE hard button to access your climate control features. Depending on your vehicle line and option package, your climate screen may look different from the screen shown here. Climate Control Voice Commands If you are not viewing the climate co ...

Inspection and Verification
1. Verify the customer concern. 2. Visually inspect for obvious signs of electrical damage. Visual Inspection Chart Electrical Central junction box (CJB) Fuse 31 (5A) Damaged wiring harness Loose or corroded connections ...