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:

Battery (Diagnosis and Testing)
Special Tool(s) Micro 490 Digital Battery Analyzer 162-00004 Inspection and Verification 1. Verify the customer concern by operating the system. 2. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspecti ...

General information
Make sure you review your device’s manual before using it with SYNC. Support The SYNC support team is available to help you with any questions you cannot answer on your own. Monday-Saturday, 8:30am-9:00pm EST. Sunday, 10:30am-7:30pm EST. In the United St ...

Transmission fluid check
Checking Automatic Transmission Fluid Note: Transmission fluid should be checked and, if required, added by an authorized dealer. The automatic transmission does not have a transmission fluid dipstick. See your Scheduled Maintenance Information for scheduled ...