Operation; Diagnosis And Testing - Hub And Bearing; Removal - Chrysler Dodge Caravan 2002 Manual

RS
HUB / BEARING (Continued)
Fig. 7 Hub And Bearing - FWD With ABS

OPERATION

The hub and bearing has internal bearings that
allow the hub to rotate with the tire and wheel
assembly (and driveshaft on All-Wheel-Drive vehi-
cles). The five wheel mounting studs mount the tire
and wheel assembly, and disc brake rotor or brake
drum to the vehicle.
On All-Wheel-Drive vehicles, the splined mating of
the driveshaft stub axle and hub allows the drive-
shaft to rotate with the hub and wheel.
Front-Wheel-Drive vehicles equipped with antilock
brakes have a wheel speed sensor and tone wheel
mounted to the rear of the hub and bearing. The tone
wheel rotates with the hub which is sensed by the
wheel speed sensor.
DIAGNOSIS AND TESTING - HUB AND
BEARING
The bearing contained in the hub and bearing
assembly will produce noise and vibration when worn
or damaged. The noise will generally change when
the bearings are loaded. A road test of the vehicle is
normally required to determine the location of a
worn or damaged bearing.
Find a smooth level road surface and bring the
vehicle up to a constant speed. When vehicle is at a
constant speed, swerve the vehicle back and forth
from the left and to the right. This will load and
unload the bearings and change the noise level.
When bearing damage is slight, the noise is some-
times noticeable at lower speeds and at other times
is more noticeable at speeds above 105 km/h (65
mph).

REMOVAL

FRONT-WHEEL-DRIVE VEHICLES
(1) Raise vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(2) Remove wheel and tire. (Refer to 22 - TIRES/
WHEELS - REMOVAL)
(3) Remove brake drum or disc brake caliper and
rotor from hub and bearing. (Refer to 5 - BRAKES/
HYDRAULIC/MECHANICAL/DRUM - REMOVAL-
)(Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/
ROTOR - REMOVAL)
(4) If equipped with antilock brakes, perform the
following:
(a) Remove secondary (yellow) retaining clip at
rear of wheel speed sensor head (Fig. 8).
(b) Push up on metal retaining clip (Fig. 8) until
it bottoms. This will release wheel speed sensor
head from hub and bearing.
(c) While holding metal clip up, pull back on
wheel speed sensor head removing it from hub and
bearing.
Fig. 8 Sensor Connector At Hub And Bearing
1 - SECONDARY SENSOR RETAINING CLIP
2 - METAL SENSOR RETAINING CLIP
3 - HUB AND BEARING
(5) Remove the 4 bolts attaching the hub and bear-
ing to the rear axle.
CAUTION: Corrosion may occur between the hub
and bearing, and the axle. If this occurs the hub
and bearing will be difficult to remove from the
axle. If the hub and bearing will not come out of the
axle by pulling on it by hand, do not pound on the
hub and bearing to remove it from the axle. Damage
will occur. Use the following procedure.
REAR SUSPENSION 2 - 31