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:
Inspection and Verification
WARNING: A vehicle equipped with a Traction-Lok differential will
always have both
wheels driving. If, while the vehicle is being serviced, only one wheel is
raised off the ground
and the rear axle is driven by the engine, the wheel on the ground could drive ...
Pressure Relief
Special Tool(s)
Fuel Pressure Gauge
310-012 (T80L-9974-B)
WARNING: Do not smoke or carry lighted tobacco or open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ig ...
Degas Bottle - 4.6L(2V) and 4.6L(4V)
Removal and Installation
1. Drain the engine coolant from the degas bottle only. For additional
information, refer to Cooling
System Draining, Filling and Bleeding in this section.
2. Disconnect the radiator vent hose.
3. Remove the degas bottle return hos ...
