Chrysler Pacifica. Manual — part 748
DISASSEMBLY - PUMP (PULLEY)
The only serviceable part of the power steering
pump is the pulley. The procedure following is for
removal and installation of the pulley from the pump
once the pump is removed from the vehicle.
(1) Remove the power steering pump from the
vehicle. Refer to Removal And Installation in this
section of the service manual.
(2) Remove the pulley from the shaft of the power
steering pump using Puller C-4333 (Fig. 10).
CAUTION: Do not hammer on power steering pump
pulley. This will damage the pulley and the power
steering pump.
(3) Replace pulley if it is found to be bent, cracked,
or loose.
ASSEMBLY - PUMP (PULLEY)
The only serviceable part of the power steering
pump is the pulley. The procedure following is for
removal and installation of the pulley from the pump
once the pump is removed from the vehicle.
(1) Install the pulley with Installer C-4063 (Fig.
11). 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) Install the pulley until it is flush with the end
of the power steering pump shaft (Fig. 12).
(4) Install the power steering pump on the vehicle.
INSTALLATION
INSTALLATION - 3.5L ENGINE
(1) Install power steering pump back in engine
compartment using reverse order of its removal.
(2) Install power steering pump on its mounting
bracket (Fig. 6).
(3) Install three power steering pump mounting
bolts through pulley (Fig. 6) (Fig. 5). Tighten pump
mounting bolts to 23 N·m (200 in. lbs.) torque.
(4) Lower floor jack allowing engine to return to
normal position. Remove jack.
(5) Install two bolts fastening right motor mount
to frame rail. Tighten bolts to 68 N·m (50 ft. lbs.)
torque.
Fig. 10 Pulley Removal
1 - POWER STEERING PUMP DRIVE PULLEY
2 - SPECIAL TOOL C-4333
Fig. 11 Pulley Installation
1 - POWER STEERING PUMP DRIVE PULLEY
2 - SPECIAL TOOL C-4063–A
Fig. 12 Pulley To Pump Shaft Location
1 - PULLEY
2 - PUMP BODY
3 - PUMP SHAFT
4 - HUB
CS
PUMP
19 - 27
PUMP (Continued)
(6) Reposition pressure and return hoses to their
original locations at pump (Fig. 1).
NOTE: Before installing power steering pressure
hose on power steering pump, replace O-ring on
end of power steering pressure hose. Lubricate
O-ring using clean power steering fluid.
(7) Install pressure hose into pump fitting (Fig. 1).
Thread pressure hose tube nut into pump and
tighten to 31 N·m (275 in. lbs.) torque.
(8) Raise vehicle.
(9) Install nuts mounting front and rear motor
mounts to engine cradle (one nut each mount).
Tighten nuts to 102 N·m (75 ft. lbs.) torque.
(10) Install accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
INSTALLATION)
(11) Place pressure and return hoses on A/C com-
pressor mounted bracket and install routing clamp
and nut (Fig. 3). Tighten nut to 12 N·m (105 in. lbs.)
torque.
(12) Install drive belt splash shield.
(13) Install tire and wheel assembly (Refer to 22 -
TIRES/WHEELS - INSTALLATION). Tighten wheel
mounting nuts to 135 N·m (100 ft. lbs.) torque.
(14) Lower vehicle.
(15) Install air cleaner housing. (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER
HOUSING - INSTALLATION)
(16) Install generator wiring harness routing clip
into pump (Fig. 2).
(17) Slide fluid supply hose onto pump fitting and
install clamp securing it in place (Fig. 1).
(18) Install power steering fluid reservoir. (Refer to
19 - STEERING/PUMP/RESERVOIR - INSTALLA-
TION)
(19) Install upper radiator closure panel. (Refer to
23 - BODY/EXTERIOR/CLOSURE PANEL - INSTAL-
LATION)
(20) Install engine appearance cover.
(21) Connect negative (-) battery cable on negative
battery post.
(22) Fill and bleed power steering system using
Power Steering Pump Initial Operation Procedure.
(Refer to 19 - STEERING/PUMP - STANDARD PRO-
CEDURE)
(23) Inspect for leaks.
INSTALLATION - 3.8L ENGINE
(1) Position power steering pump on engine.
(2) Install three power steering pump mounting
bolts through pulley (Fig. 9). Tighten pump mounting
bolts to 23 N·m (200 in. lbs.) torque.
NOTE: Before installing power steering pressure
hose on power steering pump, replace O-ring on
end of power steering pressure hose. Lubricate
O-ring using clean power steering fluid.
(3) Install pressure hose into pump fitting (Fig. 8).
Thread pressure hose tube nut into pump and
tighten to 31 N·m (275 in. lbs.) torque.
(4) Slide return hose onto reservoir fitting and
install clamp securing it in place (Fig. 7).
(5) Install accessory drive belt. (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION)
(6) Install air cleaner housing and hoses. (Refer to
9 - ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
HOUSING - INSTALLATION)
(7) Connect negative (-) battery cable on negative
battery post.
(8) Fill and bleed power steering system using
Power Steering Pump Initial Operation Procedure.
(Refer to 19 - STEERING/PUMP - STANDARD PRO-
CEDURE)
(9) Inspect for leaks.
19 - 28
PUMP
CS
PUMP (Continued)
FLUID
STANDARD PROCEDURE - POWER STEERING
FLUID LEVEL CHECKING
WARNING: FLUID LEVEL SHOULD BE CHECKED
WITH THE ENGINE OFF TO PREVENT INJURY
FROM MOVING PARTS AND TO ENSURE ACCU-
RATE FLUID LEVEL READING.
The fluid level can be read on the exterior of the
power steering fluid reservoir. The fluid level should
be within the “FILL RANGE” when the fluid is at
normal ambient temperature, approximately 21°C to
27°C (70°F to 80°F) (Fig. 13).
Before removing the power steering filler cap, wipe
the reservoir filler cap free of dirt and debris. Do not
overfill
the
power
steering
system.
Use
only
Mopar
t ATF+4 Automatic Transmission Fluid
(MS-9602) in the power steering system. For
additional information on Automatic Transmission
Fluid, (Refer to LUBRICATION & MAINTENANCE/
FLUID TYPES - DESCRIPTION).
CAUTION: Use only Mopar
T
ATF+4 Automatic Trans-
mission Fluid (MS-9602). Use of other Mopar
T
power steering fluids (MS5931 and MS9933) should
be avoided to ensure peak performance of the
power steering system under all operating condi-
tions.
FLUID COOLER
DESCRIPTION
For fluid cooling purposes a cooling loop is located
in the power steering fluid return hose (Fig. 14). The
cooling loop is serviced as part of the return hose.
Fig. 13 Power Steering Fluid Reservoir
Fig. 14 Hoses Near Steering Gear
1 - PRESSURE HOSE
2 - SCREW
3 - RETURN HOSE
4 - ROUTING CLAMP
5 - COOLING LOOP PORTION OF RETURN HOSE
CS
PUMP
19 - 29
HOSE - PRESSURE
REMOVAL
REMOVAL - 3.5L ENGINE
(1) Remove power steering fluid reservoir. (Refer to
19 - STEERING/PUMP/RESERVOIR - REMOVAL)
(2) Remove tube nut fastening pressure hose to
power steering pump (Fig. 15). Remove pressure hose
from pump.
(3) Remove generator wiring harness routing clip
from pump (Fig. 16).
(4) Raise and support vehicle. (Refer to LUBRICA-
TION & MAINTENANCE/HOISTING - STANDARD
PROCEDURE)
(5) Remove right front tire and wheel assembly.
(6) Remove drive belt splash shield.
(7) Remove nut, then hose tube routing clamp at
A/C compressor mounted bracket (Fig. 17).
Fig. 15 Hoses At Pump And Reservoir
1 - RETURN HOSE CLAMP
2 - FLUID RESERVOIR
3 - SUPPLY HOSE CLAMPS
4 - SUPPLY HOSE
5 - POWER STEERING PUMP
6 - PRESSURE HOSE TUBE NUT
Fig. 16 Wiring Harness Clip At Pump
1 - POWER STEERING HOSE
2 - GENERATOR WIRING HARNESS ROUTING CLIP
3 - SUPPLY FITTING ON PUMP
Fig. 17 Hose Routing Clip At A/C Mounted Bracket
1 - POWER STEERING HOSE TUBES
2 - POWER STEERING PUMP
3 - NUT
4 - CLAMP
5 - A/C MOUNTED BRACKET
19 - 30
PUMP
CS
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