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:

Lumbar Assembly
Removal and Installation All vehicles 1. Remove the front seat. For additional information, refer to Seat-Front Power in this section. 2. Release the J-clip. 3. Remove the seat backrest latch handle knob (62762). 4. Pull the seat backrest trim cover ...

Component Tests
Brake Booster 1. Check the hydraulic brake system for leaks or insufficient fluid. 2. With the transmission (7003) in NEUTRAL, stop the engine (6007) and apply the parking brake control (2780). Apply the brake pedal several times to exhaust all va ...

Pinpoint Tests
PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER Test Step Result / Action to Take A1 CHECK THE BATTERY POWER SUPPLY TO THE INSTRUMENT CLUSTER YesGO to A2 . No REPAIR the circuit. TEST the system for normal operation. ...