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:

Inspection and Verification
1. Verify the customer concern is with the evaporative emission (EVAP) system. 2. Visually inspect for the following obvious signs of mechanical damage. Visual Inspection Chart Mechanical Fuel filler cap EVAP test port ...

Sync applications and services (if equipped)
Note: In order for the following features to work, your cellular phone must be compatible with SYNC. To check your phone’s compatibility, visit www.SYNCMyRide.com, www.SYNCMyRide.ca or www.syncmaroute.ca. • SYNC Services (if equipped, United States only): ...

Reverse Sun Gear
Disassembly   1. Remove the reverse clutch sun gear assembly and the No. 4 forward clutch hub bearing and race. 2. Remove the forward clutch sun gear assembly and the No. 5 forward clutch sun gear bearing and race. Assembly 1. The forward clutch ...