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:

Visual Inspection Chart
Mechanical Electrical Low brake fluid Anti-lock brake sensor Anti-lock brake sensor indicator Base brake system Wheel bearings Central junction box (CJB) Fuse: 5 (15A) 15 (10A) 29 (15 ...

Air Conditioning (A/C) System Recovery, Evacuation and Charging
Special Tool(s) R-134a A/C Refrigerant Center 176-00002 or equivalent R-134a A/C Refrigerant Center 023-00153 or equivalent R-134a Manifold Gauge Set 176-R032A or equivalent 1.2 CFM Vacuum Pump 023-00162 o ...

Cabin air filter
Note: Make sure you have a cabin air filter installed at all times. This prevents foreign objects from entering the system. Running the system without a filter in place could result in degradation or damage to the system. Your vehicle is equipped with a cabi ...