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:

Symptom Chart
Condition Possible Sources Action Incorrect/erratic direction of airflow from outlet(s) No vacuum to A/C heater function switch selector. A/C heater function selector switch leaks vacuum. Kinked/pinched vacuu ...

Fuel Line Fittings - Push Connect
Special Tool(s) Disconnect Tool, Spring Lock Coupling 310-S039 (T90T-9550-S) Material Item Specification SAE 5W-20 Super Premium Blend Motor Oil XO-5W20-QSP or equivalent WSS-M2C153- H Disconnect WARNING: Do not smoke ...

Air Bag Disposal - Undeployed Inoperative
WARNING: Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment. WARNING: Never probe the c ...