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:

Removal
1. Remove the air intake scoop bracket. For additonal information, refer to Section. 2. Remove the air cleaner outlet tube. For additional information, refer to Section. 3. Disconnect the accelerator cable, the speed control actuator cable and the return ...

Sensor - Rear
Removal 1. Remove the rear passenger seat. 2. Disconnect the rear anti-lock brake sensor electrical connector. 3. Raise and support the vehicle. 4. Remove the rear anti-lock brake sensor harness from the floor pan. 5. Remove the anti-lock brake senso ...

Spark Plug - Inspection
1. Inspect the spark plug for a bridged gap. Check for deposit build-up closing the gap between the electrodes. Deposits are caused by oil or carbon fouling. Clean the spark plug. 2. Check for oil fouling. Check for wet, black deposits on th ...