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:

Anti-Lock Control
Refer to Wiring Diagrams Cell 42 , Anti-Lock Brake for schematic and connector information. Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent scan tool 73 Digita ...

Crankshaft Main Bearing Journal - Clearance
Special Tool(s) Plastigage 303-D031 (D81L-6002-B) or equivalent NOTE: Crankshaft main bearing journals must be within specifications before checking journal clearance. 1. Remove the crankshaft main bearing caps and crankshaft main bearing. ...

Torque Converter Turbine to Pump Stator Interference Check
1. NOTE: Front pump support may remain in front pump support and gear during this test. Position the torque converter with the pump drive up. 2. Install the front pump support to engage the mating splines of the front pump support shaft on the torque convert ...