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:

Pinpoint Tests
PINPOINT TEST A: THE CONTROL ILLUMINATION IS INOPERATIVE Test Step Result / Action to Take A1 CHECK PARKING LAMPS YesPlace the headlamp switch in the OFF position. GO to A2 . No REFER to Section. Place the headlamp switch ...

Introduction
ABOUT THIS MANUAL Thank you for choosing Ford. We recommend that you take some time to get to know your vehicle by reading this manual. The more that you know about it, the greater the safety and pleasure you will get from driving it. WARNING: Always drive wit ...

Component Test
Carry out the appropriate Functional Test(s) as determined in Inspection and Verification. Functional Test I (Buckle and Tongue) The safety belt buckle and tongue assembly must operate freely during the latching and unlatching function. Fasten the safety bel ...