Ford Mustang (1999-2004) Service Manual: 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 cause a vibration condition.
1. Position the special tool on the wheel hub or axle flange face, as close to the outer edge as possible. Zero the indicator to allow the pointer to deflect either way.
2. Rotate the hub or flange one full turn and note the maximum and minimum readings. The difference between the maximum and minimum readings will be the total face runout. The runout must not exceed 0.127 mm (0.005 inch).
Drive Pinion Stem and Pinion Flange
Check the pinion flange runout when all other checks have failed to show the cause of vibration.
One cause of excessive pinion flange runout is incorrect installation of the axle drive pinion seal.
Check to see if the spring on the seal lip has been dislodged before installing the ring gear and pinion.
Axle Noise
NOTE: Before disassembling the axle to diagnose and correct gear noise, eliminate the tires, exhaust, trim items, roof racks, axle shafts and wheel bearings as possible causes. The noises described as follows usually have specific causes that can be diagnosed by observation as the unit is disassembled. The initial clues are the type of noise heard during the road test.
Wheel Hub or Axle Flange Bolt Circle Runout
NOTE: The brake discs must be removed to carry out all runout
measurements.
1. Position the special tool perpendicular to the wheel hub or axle flange bolt,
as close to the hub
or flange face as po ...
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. ...
Other materials:
Heater Core Backflushing
Special Tool(s)
Flush Kit
164-R3658 or equivalent
Drain Kit
164-R3662 or equivalent
Material
Item
Specification
Motorcraft Premium Cooling
System Flush
VC-1 or equivalent
ESR-M14P7-A
Motorcraft Premium ...
Exhaust Manifold - Inspection
Special Tool(s)
Straight Edge
303-D039 (D83L-4201-A) or
equivalent
1. Place a straight edge across the exhaust manifold flanges and check for
warping with a feeler
gauge.
Bearing -Inspection
1. Inspect bearings for the following defects. P ...
Sensing system
WARNING: To help avoid personal injury, please read and
understand the limitations of the system as contained in this
section. Sensing is only an aid for some (generally large and fixed)
objects when moving in reverse on a flat surface at parking speeds.
Traf ...