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:

Switch - Speed Control Actuator
Removal 1. Remove the steering wheel; refer to Section. 2. Remove the steering wheel rear cover. 1. Remove the screws. 2. Remove the steering wheel rear cover. 3. Remove the ribbon harness from the clips. 4. Remove the horn contact electrical c ...

Crankshaft Runout
Special Tool(s) Dial Indicator Gauge with Holding Fixture 100-002 (TOOL-4201-C) or equivalent 1. NOTE: Crankshaft main bearing journals must be within specifications before checking runout. Use the Dial Indicator Gauge with Holding Fixtur ...

Fuel quality
Note: Use of any fuel other than those recommended may cause powertrain damage and a loss of vehicle performance; repairs may not be covered under warranty. Choosing the Right Fuel Use only unleaded fuel or unleaded fuel blended with a maximum of 15% ethanol. ...