GEAR
TABLE OF CONTENTS
page
page
GEAR
DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . 13
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DIAGNOSIS AND TESTING - POWER
STEERING GEAR LEAKAGE AREAS
. . . . . . . 13
REMOVAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . 14
ADJUSTMENTS
. . . . . . . . . . . . . . . . . . . . . . . . 15
SPECIFICATIONS
POWER STEERING GEAR
. . . . . . . . . . . . . . 16
TORQUE CHART
. . . . . . . . . . . . . . . . . . . . . . 16
SPECIAL TOOLS
POWER STEERING GEAR
. . . . . . . . . . . . . . 16
GEAR
DESCRIPTION
CAUTION: MOPAR
T
ATF+4 is to be used in the
power steering system. No other power steering or
automatic transmission fluid is to be used in the
system. Damage may result to the power steering
pump and system if any other fluid is used, and do
not overfill.
The power steering system has a hydraulic pump.
The pump is a constant flow rate and displacement
vane-type pump. The pump reservoir on the 4.0L
engine is mounted to the pump body (Fig. 1)& (Fig.
2). The 2.4L engine has a remote pump reservoir
mounted to the fan shroud (Fig. 3).
The steering gear used is a straight ratio recircu-
lating ball type gear. A tilt and non-tilt column pro-
vide steering input.
OPERATION
The gear acts as a rolling thread between the
worm shaft and rack piston. The worm shaft is sup-
ported by a thrust bearing at the upper end. When
the worm shaft is turned the rack piston moves. The
rack piston teeth mesh with the pitman shaft. Turn-
ing the worm shaft turns the pitman shaft, which
turns the steering linkage.
CAUTION: Components attached with a nut and cot-
ter pin must be torqued to specification. Then if the
slot in the nut does not line up with the cotter pin
hole, tighten nut until it is aligned. Never loosen the
nut to align the cotter pin hole.
DIAGNOSIS AND TESTING - POWER STEERING
GEAR LEAKAGE AREAS
NOTE: Do not service the Steering Gear, if the gear
is leaking it must be replaced with a new gear
assembly.
(1) Possible power steering gear leakage areas.
(Fig. 4).
REMOVAL
NOTE: The steering column on vehicles with an
automatic transmission may not be equipped with
an internal locking shaft that allows the ignition key
cylinder to be locked with the key. Alternative meth-
ods of locking the steering wheel for service will
have to be used.
Fig. 1 POWER STEERING GEAR & PUMP - 4.0L
1 - POWER STEERING GEAR
2 - PRESSURE HOSE
3 - POWER STEERING RESERVOIR
4 - POWER STEERING PUMP
5 - RETURN HOSE
TJ
GEAR
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