1996 CHRYSLER VOYAGER Service Manual

DISASSEMBLY AND ASSEMBLY
POWER STEERING PUMP PULLEY
DISASSEMBLY
(1) Remove the pulley from the shaft of the power
steering pump using Puller C-4333 or C-4068 (Fig.
33).
CAUTION: Do not hammer on power steering
pump pulley. This will damage the pulley and the
power steering pump.
(2) Replace pulley if it is found to be bent, cracked,
or loose.
ASSEMBLY
(1) Install the pulley with Installer C-4063 (Fig.
34). Do not use the tool adapters.
(2) Ensure that the tool and the pulley remain
aligned with the pump shaft. Prevent the pulley from
being cocked on the shaft.(3) Force pulley flush with the end of the power
steering pump shaft (Fig. 35).
(4) With serpentine belts, run engine until warm
(5 min.) and note any belt chirp. If chirp exists, move
pulley outward approximately 0.5 mm (0.020 in.). If
noise increases, press on 1.0 mm (0.040 in.).Be
careful that pulley does not contact mounting
bolts.
POWER STEERING PUMP FLOW CONTROL VALVE
SEAL
DISASSEMBLE
WARNING: POWER STEERING OIL, ENGINE
PARTS AND THE EXHAUST SYSTEM MAY BE
EXTREMELY HOT IF ENGINE HAS BEEN RUNNING.
DO NOT START ENGINE WITH ANY LOOSE OR DIS-
CONNECTED HOSES. DO NOT ALLOW HOSES TO
TOUCH HOT EXHAUST MANIFOLD OR CATALYST.
(1) Remove cap from power steering fluid reser-
voir.
(2) Using a siphon pump, remove as much power
steering fluid as possible from the power steering
fluid reservoir.
(3) Raise vehicle See Hoisting, Group 0. Put oil
drain pan under vehicle to catch power steering fluid.
(4) Raise the heat sleeve (Fig. 36) on the power
steering return hose to expose the return hose to
steel tube connection. Remove hose clamp from
power steering fluid return hose (Fig. 36). Remove
power steering return hose from steel tube and allow
remaining power steering fluid to drain from power
steering pump and reservoir.
(5) Remove the power steering fluid pressure line
from the power steering pump pressure fitting (Fig.
37). Drain excess power steering fluid from hose.
Fig. 33 Pulley Removal
Fig. 34 Pulley Installation
Fig. 35 Pulley To Pump Shaft Location
NSSTEERING 19 - 23

(6) Remove the pressure fitting/flow control valve
from the power steering pump and remove and dis-
card the O-Ring seal.
ASSEMBLE
(1) Install a new O-Ring seal on the pressure fit-
ting/flow control valve, and wet the O-Ring with
clean fresh power steering fluid.
(2) Install the pressure fitting/flow control valve in
the power steering pump. Tighten the pressure fit-
ting/flow control valve to a torque of 75 N´m (55 ft.
lbs.).
CAUTION: When tightening and torquing the pres-
sure hose at the power steering pump, the hose
should be rotated against the fluid return hose fit-
ting on the pump.(3) Install the power steering fluid pressure hose
in the pressure fitting/flow control valve (Fig. 37).
Tighten the tube nut to a torque of 34 N´m (25 ft.
lbs.)
(4) Install the power steering fluid return hose on
the steel tube at the front suspension cradle (Fig.
36).
(5) Install a screw type hose clamp on the power
steering hose to steel tube connection. Tighten the
screw clamp to a torque of 2 N´m (18 in. lbs.).
CAUTION: The protective heat shield sleeves must
cover the entire rubber hose and hose to tube con-
nection portion of both the power steering fluid
pressure and return hoses (Fig. 36). This is required
to keep the power steering hoses from becoming
overheated.
(6) When used, properly position the protective
heat sleeves (Fig. 36) on the power steering hoses.
Then, tie strap the heat sleeves to the power steering
hoses to keep them in their proper position.
(7) Fill the power steering system with fluid, bleed
air from system and check that power steering fluid
is at correct level.
SPECIFICATIONS
POWER STEERING SYSTEM SPECIFICATIONS
Flow At 1500 RPM And Minimum Pressure.5.0 to 7.0
Liters/Min (1.3 to 1.9 GPM)
Control Valve Pressure Relief. 9653 to 10342 kPa (1400
to 1500psi)
POWER STEERING PUMP FASTENER TORQUE
SPECIFICATIONS
DESCRIPTION TORQUE
POWER STEERING PUMP:
Flow Control Valve Fitting. . . .75 N´m (55 ft. lbs.)
Mounting Bolts.............54N´m(40ft.lbs.)
Rear Bracket To Engine
Mounting Bolts.............54N´m(40ft.lbs.)
POWER STEERING FLUID HOSES:
Hose Tube Nuts.............34N´m(25ft.lbs.)
Routing Bracket To
Suspension Cradle..........28N´m(21ft.lbs.)
Fig. 36 Return Hose At Steel Tube
Fig. 37 Pressure Hose Connection To Power
Steering Pump
19 - 24 STEERINGNS
DISASSEMBLY AND ASSEMBLY (Continued)

SPECIAL TOOLS
POWER STEERING PUMP
Installer C-4063B
Puller C-4333
P/S System Analyzer 6815
NSSTEERING 19 - 25

POWER STEERING GEAR
INDEX
page page
DESCRIPTION AND OPERATION
STEERING GEAR OPERATION DESCRIPTION . 26
DIAGNOSIS AND TESTING
POWER STEERING GEAR................. 27
REMOVAL AND INSTALLATION
STEERING GEAR....................... 27
DISASSEMBLY AND ASSEMBLY
OUTER TIE ROD END................... 33STEERING GEAR INNER TIE ROD BOOT..... 31
SPECIFICATIONS
STEERING GEAR FASTENER TORQUE
SPECIFICATIONS...................... 34
SPECIAL TOOLS
POWER STEERING GEAR................. 35
DESCRIPTION AND OPERATION
STEERING GEAR OPERATION DESCRIPTION
NOTE: The power steering gear (Fig. 1) should NOT
be serviced or adjusted. If a malfunction or oil leak
occurs, the complete steering gear should be
replaced.
If a steering gear boot needs to be replaced due to
damage, refer to the power steering gear service sec-
tion in this manual for proper procedure.
The power steering system consists of these four
major components. Power Steering Gear, Power
Steering Pump, Pressure Hose, and Return Line.Turning of the steering wheel is converted into linear
travel through the meshing of the helical pinion
teeth with the rack teeth. Power assist steering is
provided by an open center, rotary type control valve
which directs oil from the pump to either side of the
integral rack piston.
Road feel is controlled by the diameter of a torsion
bar which initially steers the vehicle. As required
steering effort increases, as in a turn, the torsion bar
twists, causing relative rotary motion between the
rotary valve body and the valve spool. This move-
ment directs oil behind the integral rack piston,
which, in turn, builds up hydraulic pressure and
assists in the turning effort.
Fig. 1 Power Steering Gear Assembly
19 - 26 STEERINGNS

The drive tangs on the pinion mate loosely with a
stub shaft to permit manual steering control to be
maintained if the drive belt on the power steering
pump should break. However, under these conditions,
steering effort will be increased.
DIAGNOSIS AND TESTING
POWER STEERING GEAR
The following procedure can be used to test the
operation of the power steering system on this vehi-
cle. This test will provide the flow rate for the power
steering system along with the maximum relief pres-
sure of the power steering pump. This test is to be
performed any time a power steering system problem
is present to determine if the power steering pump or
power steering gear is not functioning properly. The
following pressure and flow test is performed using
Pressure/Flow Tester, Special Tool 6815 (Fig. 2).
POWER STEERING PUMP FLOW AND
PRESSURE TEST PROCEDURE
(1) Check power steering pump drive belt tension
and adjust as necessary.
(2) Disconnect power steering fluid pressure hose,
at power steering pump. Use a container for dripping
fluid.
(3) Connect Pressure Gauge, Special Tool from kit
6815 to both hoses using adapter fittings. Connect
spare pressure hose, to power steering pump pres-
sure hose fitting.
(4) Completely open valve on Special Tool 6815.
(5) Start engine and let idle long enough to circu-
late power steering fluid through flow/pressure test
and get air out of fluid. Then shut off engine.
(6) Check power steering fluid level, and add fluid
as necessary. Start engine again and let idle.
(7) Pressure gauge should read below 862 kPa
(125 psi), if above, inspect the hoses for restrictions
and repair as necessary. The initial pressure readingshould be in the range of 345-552 kPa (50-80 psi).
The flow meter should read between 1.3 and 1.9
GPM
CAUTION: The following test procedure involves
testing power steering pump maximum pressure
output and flow control valve operation. Do not
leave valve closed for more than 5 seconds as the
pump could be damaged.
(8) Close valve fully three times and record high-
est pressure indicated each time.All three read-
ings must be within the specifications and
within 345 kPa (50 psi) of each other.
NOTE: Power steering pump maximum relief pres-
sure is 9653 to 10342 kPa (1400 to 1500 psi.).
²If power steering pump pressures are within
specifications but not within 345 kPa (50 psi) of each
other, then replace power steering pump.
²If pressures are within 345 kPa (50 psi) of each
other but below specifications, then replace power
steering pump.
CAUTION: Do not force the pump to operate
against the stops for more than 5 seconds at a time
because, pump damage will result.
(9) Open test valve. Turn steering wheel to the
extreme left and right positions until against the
stops, recording the highest indicated pressure at
each position. Compare pressure gauge readings to
power steering pump specifications. If highest output
pressures are not the same against either stop, the
steering gear is leaking internally and must be
replaced.REMOVAL AND INSTALLATION
STEERING GEAR
NOTE: The power steering gear should NOT be ser-
viced or adjusted. If a malfunction or oil leak
occurs, the complete steering gear assembly must
be replaced.
REMOVE
CAUTION: Positioning the steering column in the
locked position will prevent the clockspring from
being accidentally over-extended when the steering
column is disconnected from the intermediate
steering coupler.
Fig. 2 Power Steering Pump Flow/Pressure Tester
NSSTEERING 19 - 27
DESCRIPTION AND OPERATION (Continued)