Chrysler PT Cruiser. Manual — part 392
SPECIFICATIONS
FRONT SUSPENSION FASTENER TORQUE
DESCRIPTION
N·m
Ft.
Lbs.
In.
Lbs.
Ball Joint Stud Pinch Bolt
95
70
—
Hub Nut
244
180
—
Disc Brake Caliper Adapter
Knuckle Bolts
104
77
—
Lower Control Arm Front
Pivot Bolt
170
125
—
Lower Control Arm Rear
Pivot Bolt
250
185
—
Stabilizer Bar Cushion
Retainer Bolts
25
18
220
Stabilizer Bar Link Nuts
29
22
260
Strut Clevis-to-Knuckle Nuts
163
120
—
Strut Shaft Nut
75
55
—
Strut-to-Tower Nuts
34
25
—
Tie Rod Adjuster Jam Nut
75
55
—
Tie Rod End-to-Knuckle Nut
54
40
—
Wheel Bearing Retainer
Plate Bolts
28
21
250
Wheel Mounting (Lug) Nuts
135
100
—
SPECIAL TOOLS
FRONT SUSPENSION
1 - UPPER MOUNT
2 - VEHICLE STRUT TOWER
3 - OUTER TIE ROD
4 - JAM NUT
5 - STEERING GEAR
6 - CROSSMEMBER
7 - STABILIZER BAR
8 - STABILIZER BAR CUSHION AND RETAINER
9 - BALL JOINT
10 - STABILIZER BAR LINK
11 - HUB
12 - KNUCKLE
13 - STRUT
14 - LOWER SPRING ISOLATOR
15 - COIL SPRING
16 - JOUNCE BUMPER
17 - DUST SHIELD
18 - SPRING SEAT AND BEARING
19 - STRUT ASSEMBLY
20 - LOWER CONTROL ARM
Splitter, Bearing 1130
Installer, Bearing 5052
Remover/Installer 6644 (-2)
Installer 6758
Remover 6804
2 - 4
FRONT SUSPENSION
PT
FRONT SUSPENSION (Continued)
HUB / BEARING
DESCRIPTION
The wheel bearing and hub are pressed into the
steering
knuckle.
(Refer
to
2
-
SUSPENSION/
FRONT/KNUCKLE - DESCRIPTION)
OPERATION
The wheel bearing and hub are pressed into the
steering
knuckle.
(Refer
to
2
-
SUSPENSION/
FRONT/KNUCKLE - OPERATION)
DIAGNOSIS AND TESTING - WHEEL BEARING
AND HUB
The wheel bearing is designed for the life of the
vehicle and requires no type of periodic maintenance.
The following procedure may be used for diagnosing
the condition of the wheel bearing and hub.
With the wheel, disc brake caliper, and brake rotor
removed, rotate the wheel hub. Any roughness or
resistance to rotation may indicate dirt intrusion or a
failed hub bearing. If the bearing exhibits any of
these conditions during diagnosis, the hub bearing
will require replacement. Do not attempt to disas-
semble the bearing for repair. If the wheel bearing is
disassembled for any reason, it must be replaced.
Damaged bearing seals and the resulting excessive
grease loss may also require bearing replacement.
Moderate grease weapage from the bearing is consid-
ered normal and should not require replacement of
the wheel bearing.
Socket/Wrench Strut Nut 6864
Remover/Installer 6908 (–2)
Remover C-4150A
Press, Ball Joint C-4212F
Installer Adapter C-4698-2
Remover MB-990799
Remover MB991113
PT
FRONT SUSPENSION
2 - 5
FRONT SUSPENSION (Continued)
To diagnose a bent hub, (Refer to 5 - BRAKES/HY-
DRAULIC/MECHANICAL/ROTORS
-
DIAGNOSIS
AND TESTING) for the procedure on measuring hub
runout.
REMOVAL
The wheel bearing and hub are pressed into the
knuckle.
(Refer
to
2
-
SUSPENSION/FRONT/
KNUCKLE - REMOVAL)
INSTALLATION
The wheel bearing and hub are pressed into the
knuckle.
(Refer
to
2
-
SUSPENSION/FRONT/
KNUCKLE - INSTALLATION)
KNUCKLE
DESCRIPTION - STEERING KNUCKLE
The steering knuckle is a single casting with legs
machined for attachment to the front strut assembly
on the top, lower control arm ball joint on the bot-
tom, and steering linkage on the trailing end (Fig. 1).
The steering knuckle also has two machined, drilled
and tapped legs on the leading end casting to support
and align the front disc brake caliper adapter.
The knuckle supports the wheel bearing and hub
(Fig. 1). The wheel hub is pressed into a sealed-for-
life wheel bearing that is pressed into the steering
knuckle. A retainer plate also holds the bearing in
place. The hub supports the driveshaft outer constant
velocity (C/V) joint. Each is splined and meshes in
the center of the hub. The outer C/V joint is retained
to the hub using a nut. The nut is locked to the outer
C/V stub shaft using a nut retainer and cotter pin.
The wheel bearing is a Unit 1 type cartridge bear-
ing that requires no maintenance. The wheel bearing
can be serviced separately from the hub.
The hub has five studs pressed into its flange.
OPERATION - STEERING KNUCKLE
The steering knuckle pivots with the strut assem-
bly between the lower ball joint and the pivot bearing
in the strut assembly. The steering gear outer tie rod
end connects to the trailing end of each knuckle,
allowing the vehicle to be steered.
The center of the knuckle supports the hub, wheel
bearing and axle shaft.
The hub and wheel bearing work together. The
wheel bearing has internal bearings that allow the
hub to rotate with the driveshaft and the tire and
wheel assembly. The hub’s five studs mount the tire
and wheel to the vehicle.
DIAGNOSIS AND TESTING - STEERING
KNUCKLE
The front suspension steering knuckle is not a
repairable component of the front suspension. It
must be replaced if found to be damaged in any way.
If it is determined that the steering knuckle is bent
when servicing the vehicle, no attempt is to be made
to straighten the steering knuckle.
REMOVAL - STEERING KNUCKLE
NOTE: Before proceeding, review all Warnings and
Cautions. (Refer to 2 - SUSPENSION/FRONT -
WARNING)
(1) Apply the brakes and hold in place.
(2) Raise the vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(3) Remove the front tire and wheel assembly.
(4) Remove the cotter pin, lock nut and spring
washer from the hub nut (Fig. 2).
(5) While the brakes are applied, loosen and
remove the hub nut on the end of the driveshaft (Fig.
2).
(6) Release the brakes.
(7) Remove
the
front
disc
brake
caliper
and
adapter as an assembly, and the brake rotor from the
steering knuckle. Refer to BRAKE ROTOR in the
BRAKE section for the procedure.
(8) Remove the nut attaching the outer tie rod to
the steering knuckle. To do this, hold the tie rod end
stud with a wrench while loosening and removing the
nut with a standard wrench or crowfoot wrench (Fig.
3).
Fig. 2 Hub Nut
1 - HUB NUT
2 - NUT LOCK
3 - COTTER PIN
4 - SPRING WASHER
2 - 6
FRONT SUSPENSION
PT
HUB / BEARING (Continued)
(9) Remove the tie rod end from the steering
knuckle using Remover, Special Tool MB991113 (Fig.
4).
(10) Remove the tie rod heat shield.
(11) Remove the nut and pinch bolt clamping the
ball joint stud to the steering knuckle (Fig. 5).
CAUTION: The strut assembly-to-steering knuckle
attaching bolts are serrated and must not be turned
during removal. Hold the bolts stationary in the
steering knuckles while removing the nuts, then tap
the bolts out using a pin punch.
(12) Remove the two bolts attaching the strut to
the steering knuckle.
NOTE: Use caution when separating the ball joint
stud from the steering knuckle, so the ball joint seal
does not get cut.
(13) Separate the ball joint stud from the steering
knuckle by prying down on lower control arm and up
against the ball joint boss on the steering knuckle
(Fig. 6).
NOTE: Do not allow the driveshaft to hang by the
inner C/V joint; it must be supported to keep the
joint from separating during this operation.
(14) Pull the steering knuckle off the driveshaft
outer C/V joint splines and remove the steering
knuckle.
Fig. 3 Tie Rod Nut Removal/Installation
1 - OUTER TIE ROD
2 - STUD
3 - NUT
Fig. 4 Tie Rod Removal
1 - OUTER TIE ROD
2 - STEERING KNUCKLE
Fig. 5 Ball Joint Bolt And Nut
1 - NUT
2 - BOLT
3 - BALL JOINT
Fig. 6 Separate Ball Joint From Knuckle
1 - STEERING KNUCKLE
2 - PRY BAR
3 - LOWER CONTROL ARM
4 - BALL JOINT STUD
PT
FRONT SUSPENSION
2 - 7
KNUCKLE (Continued)
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