Ford Mustang (1999-2004) Service Manual: 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.
This distinguishes it from gear whine which usually comes and goes as speed changes.
As noted, pinion bearings make a high-pitched, whistling noise, usually at all speeds. If however there is only one pinion bearing that is worn/damaged, the noise may vary in different driving phases. If pinion bearings are scored or damaged or there is a specific pinion bearing noise, new pinion bearings must be installed. A worn/damaged bearing will normally be obvious at disassembly. Examine the large end of the rollers for wear. If the pinion bearings original blend radius has worn to a sharp edge, a new pinion bearing must be installed.
NOTE: A low-pitched rumble normally associated with a worn/damaged wheel bearing can also be caused by tires.
A wheel bearing noise can be mistaken for a pinion bearing noise. Check the wheel bearing for a spalled cup, and spalled/damaged rollers. Check the wheel bearing for rotating smoothness and end play. Install a new wheel bearing if any of these concerns are detected.
If the wheel bearing is damaged, the roller surface on the axle shaft may also be damaged. Install a new axle shaft if any damage is detected.
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. ...
Chuckle
Chuckle that occurs on the coast driving phase is usually caused by excessive
clearance between the
differential gear hub and the differential case bore.
Damage to a gear tooth on the coast side can ...
Other materials:
Mass Air Flow (MAF) Sensor - 3.8L
Removal
CAUTION: The mass air flow (MAF) sensor hot wire sensing
element and housing are
calibrated as a unit and must be repaired as a complete assembly. Do not
damage the sensing
element (internal to housing) or possible failure to the mass air f ...
Heated Window Grid Wire Repair
Material
Item
Specification
Dark Walnut Metallic Acrylic
Lacquer Touch-up Paint
ALBZ-19500-5858A or
equivalent
ESR-M2-P100-
C
Rear Window Defroster Repair
D8AZ-19562-AA or equivalent
WSB-M4J58-B
1. NOTE: A single break or an ...
Pinpoint Test P: No Communication With The Restraints Control Module
Normal Operation
The RCM communicates with the scan tool using ISO 9141 communication mode
through the data link
connector (DLC).
Possible Causes
A no communication condition can be caused by:
damage to circuit 70 (LB/WH).
a damaged DLC.
a damage ...