Ford Mustang (1999-2004) Service Manual: 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 cause a noise identical to a chuckle. A very small tooth nick or ridge on the edge of a tooth can cause the noise.

Clean the gear tooth nick or ridge with a small grinding wheel. If the damaged area is larger than 3.2 mm (1/8 inch), install a new gearset.

To check the ring gear and pinion, remove as much lubricant as possible from the gears with clean solvent. Wipe the gears dry or blow them dry with compressed air. Look for scored or damaged teeth.

Also look for cracks or other damage.

If either gear is scored or damaged badly, install a new ring gear and pinion.

Chuckle

If metal has broken loose, the axle housing must be cleaned to remove particles that will cause damage. At this time, any other new parts in the axle housing must also be installed, if necessary.

    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. ...

    Knock
    Knock, which can occur on all driving phases, has several causes including damaged teeth or gearset. In most cases, one of the following conditions will occur: 1. A gear tooth damaged on the drive s ...

    Other materials:

    Generator - 4.6L 2V
    Removal and Installation 1. Disconnect the battery (10655). For additional information, refer to Section. 2. Relieve the accessory drive belt (8620) tension and remove the belt from the generator pulley. Leave the belt in place for reinstallation ...

    Fuel Charging and Controls
    The fuel injection supply manifold (9F792): delivers fuel to the fuel injector. receives fuel from the fuel supply line. The throttle body: controls air supply to the upper intake manifold by positioning the throttle plate. connects the accelerator ca ...

    Water Pump
    Removal and Installation 1. Disconnect the battery ground cable. 2. Drain the coolant. For additional information, refer to Supercharger Cooling System Draining, Filling and Bleeding in this section. 3. Remove the retainer and position the inner fender well ...