Ford Mustang (1999-2004) Service Manual: Gear Howl and Whine

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:

Noise, Vibration and Harshness (NVH) (Description and Operation)
Noise is any undesirable sound, usually unpleasant in nature. Vibration is any motion, shaking or trembling, that can be felt or seen when an object moves back and forth or up and down. Harshness is a ride quality issue where the vehicle's response to the ro ...

Installation
All vehicles 1. Using the special tools, install the crankshaft rear oil seal. Lubricate the oil seal using clean engine oil. 2. Using the special tool, install the crankshaft oil slinger. Manual transmission vehicles 3. Install the flywheel. For additi ...

Installation
1. Install the upper intake manifold gasket. 2. Install the intake manifold and bolts in the sequence shown. 3. Install the PCV valve-to-intake manifold tube. 4. Connect the vacuum hoses and the electrical connector to the EGR vacuum regulator soleno ...