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:

Extension Housing
Special Tool(s) Installer, Bearing Cup 204-039 (T77F-1217-B) Adapter for 303-224 (Handle) 205-153 (T80T-4000-W) Disassembly and Assembly   1. Remove the bolt and the output shaft speed (OSS) sensor. 2. Remove the bolt a ...

Cooling Fan Motor and Shroud
Removal and Installation 1. Disconnect the battery ground cable. 2. Remove the degas bottle or coolant expansion tank. For additional information, refer to Degas Bottle-4.6L(2V) and 4.6L(4V) in this section. 3. Disconnect the cooling fan electrical connecto ...

Battery and Cables
Vehicles are equipped with a 12 volt maintenance-free battery that contains a built-in hydrometer. The hydrometer eye indication is as follows: A green dot means the battery is OK. A yellow dot, red dot, or when the green dot is not visible, ...