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:

Manual climate control
A. Defrost: Distributes air through the windshield defroster vents and demister vents. You can use this setting to defog and clear the windshield of a thin covering of ice. B. Rear defrost: Turns the heated windows and mirrors off and on. See Heated windows ...

Inspection and Verification
WARNING: Never remove the pressure relief cap while the engine is operating or when the cooling system is hot. Failure to follow these instructions can result in damage to the cooling system or engine or personal injury. To avoid having scalding hot coolant ...

Heating and Defrosting
The heating and defrosting system has the following features: Controls the temperature and, during A/C operation, reduces the relative humidity of the air inside the vehicle. Delivers heated or cooled air to maintain the vehicle interior temperature an ...