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:

Safety belt-minder
This feature supplements the safety belt warning function by providing additional reminders by intermittently sounding a chime and illuminating the safety belt warning light when the driver’s or front passenger’s seat is occupied and the safety belt is unb ...

Pinpoint Tests - OSC Equipped Vehicles
Special Tool(s) Breakout Box, EEC-V Control System 418-049 (T94L-50-EEC-V) or equivalent MLP-TR Cable 418-F107 (007-00111) or equivalent Worldwide Diagnostic System (WDS) 418-F224 New Generation STAR (NGS) T ...

Gear (Removal and Installation)
Special Tool(s) Teflon Seal Replacer Set 211-D027 (D90P-3517-A) or Equivalent Tie Rod End Remover 211-001 (TOOL-3290-D) Removal 1. Turn the steering wheel as necessary to position the wheels in the straight-ahead position. Do not loc ...