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:

Index Card
Place an index card or a piece of paper between the weatherstrip and the sealing surface, then close the door. Slowly withdraw the index card or paper after the door is closed and check the amount of pressure on the weatherstrip. There should be a medium amo ...

Retractor - Rear Seat Safety Belt, Convertible
Special Tool(s) Torx Bit, Safety Belt Bolt 501-010 (T77L-2100-A) Removal 1. Remove the rear seat cushion. 2. Remove the luggage compartment front lining board (45444). 3. Release the safety belt guide. 4. Using the special tool, remove the ...

Spark Plugs
Removal and Installation 1. Remove the ignition coil-on-plug. For additional information, refer to Ignition Coil-On-Plug in this section. 2. NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plu ...