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:

Hydro-Boost Bleeding
1. NOTE: The Hydro-Boost power brake booster (2B560) is generally self-bleeding, and the following procedure will normally bleed the air from the power brake booster. Normal operation of the vehicle will further remove any additional trapped air. Fill the p ...

Flywheel Ring Gear
Removal 1. Remove the flywheel. 2. WARNING: This procedure should be carried out only by a correctly equipped and experienced acetylene torch operator. Tongs must be used or asbestos gloves worn when handling the heated flywheel ring gear. Failure to f ...

Supercharger Belt
Removal and Installation 1. Remove the supercharger drive belt cover. 2. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt. 3. To install, reverse the removal procedure. ...