Chrysler Pacifica. Manual — part 747
PUMP
TABLE OF CONTENTS
page
page
PUMP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
STEERING PUMP INITIAL OPERATION
. . . . . . . . . . . . . . . 24
. . . . . . . . . . . . . . . 26
FLUID
FLUID COOLER
. . . . . . . . . . . . . . . . . . . . . . . . . 29
HOSE - PRESSURE
. . . . . . . . . . . . . . . 30
. . . . . . . . . . . . . . . 32
HOSE - RETURN
. . . . . . . . . . . . . . . 34
. . . . . . . . . . . . . . . 36
HOSE - SUPPLY
. . . . . . . . . . . . . . . . . 39
RESERVOIR
. . . . . . . . . . . . . . . . . 39
PUMP
WARNING
WARNING:
POWER
STEERING
FLUID,
ENGINE
PARTS
AND
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.
WARNING: FLUID LEVEL SHOULD BE CHECKED
WITH THE ENGINE OFF TO PREVENT PERSONAL
INJURY FROM MOVING PARTS.
CAUTION
CAUTION: When the system is open, cap all open
ends of the hoses, power steering pump fittings or
power steering gear ports to prevent entry of for-
eign material into the components.
CAUTION: When servicing power steering compo-
nents, do not pinch off power steering hoses in an
any way to stop fluid flow. Damage to hoses may
result.
STANDARD PROCEDURE - POWER STEERING
PUMP INITIAL OPERATION
WARNING: FLUID LEVEL SHOULD BE CHECKED
AND ADJUSTED WITH ENGINE OFF TO PREVENT
INJURY FROM MOVING ENGINE COMPONENTS.
CAUTION: Use only Mopar
T
ATF+4 Automatic Trans-
mission Fluid (MS-9602) in power steering system.
Use of other Mopar
T
power steering fluids (MS5931
and MS9933) should be avoided to ensure peak per-
formance of the power steering system under all
operating conditions. Do not overfill.
Read the fluid level through the side of the power
steering fluid reservoir. The fluid level should be
within “FILL RANGE” when the fluid is at a tem-
perature of approximately 21°C to 27°C (70°F to
80°F).
(1) Wipe the filler cap and area clean, then remove
the cap.
(2) Fill the fluid reservoir to the proper level and
let the fluid settle for at least two (2) minutes.
CS
PUMP
19 - 23
(3) Start the engine and let run for a few seconds,
then turn the engine off.
(4) Add fluid if necessary. Repeat the above steps
until the fluid level remains constant after running
the engine.
(5) Raise the front wheels off the ground.
(6) Start the engine.
(7) Slowly turn the steering wheel right and left,
lightly contacting the wheel stops.
(8) Add fluid if necessary.
(9) Lower the vehicle, then turn the steering wheel
slowly from lock-to-lock.
(10) Stop the engine. Check the fluid level and
refill as required.
(11) If the fluid is extremely foamy, allow the vehi-
cle to stabilize a few minutes, then repeat the above
procedure.
REMOVAL
REMOVAL - 3.5L ENGINE
(1) Remove negative (-) battery cable from battery
and isolate cable.
(2) Remove cap from power steering fluid reser-
voir.
(3) Using a siphon pump, remove as much power
steering fluid as possible from power steering fluid
reservoir.
(4) Remove engine appearance cover.
(5) Remove upper radiator closure panel. (Refer to
23
-
BODY/EXTERIOR/CLOSURE
PANEL
-
REMOVAL)
(6) Remove power steering fluid reservoir. (Refer to
19 - STEERING/PUMP/RESERVOIR - REMOVAL)
(7) Remove clamp, then remove fluid supply hose
from pump (Fig. 1).
(8) Disconnect pressure hose from pump (Fig. 1).
(9) Remove generator wiring harness routing clip
from pump (Fig. 2).
(10) Raise and support vehicle. (Refer to LUBRI-
CATION & MAINTENANCE/HOISTING - STAN-
DARD PROCEDURE)
(11) Remove right front tire and wheel assembly.
(12) Remove drive belt splash shield.
(13) Remove nut, then hose tube routing clamp at
A/C compressor mounted bracket (Fig. 3).
(14) Remove nuts mounting front and rear motor
mounts to engine cradle (one nut each mount).
(15) Remove accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL)
(16) lower vehicle.
(17) Remove air cleaner housing. (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER
HOUSING - REMOVAL)
(18) Remove two bolts fastening right motor mount
to frame rail.
(19) Move pressure and return hoses away from
pump toward cooling module as far as possible with-
out bending lines.
(20) Place floor jack with an appropriate sized
block of wood on it below engine oil pan (Fig. 4).
Fig. 1 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. 2 Wiring Harness Clip At Pump
1 - POWER STEERING HOSE
2 - GENERATOR WIRING HARNESS ROUTING CLIP
3 - SUPPLY FITTING ON PUMP
19 - 24
PUMP
CS
PUMP (Continued)
CAUTION: When lifting engine, DO NOT raise
engine more than necessary or damage to driveline
half shaft (and possibly other components) will
occur.
(21) Carefully raise accessory drive end of engine
with floor jack approximately 2 inches (or just
enough to access pump mounting bolts).
(22) Remove three pump mounting bolts through
pulley (Fig. 5) (Fig. 6).
(23) Remove pump (with pulley) from engine com-
partment.
Fig. 3 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
Fig. 4 Jack Placed Under Oil Pan
1 - ENGINE OIL PAN
2 - FRONT ENGINE MOUNT STUD
3 - BLOCK OF WOOD
4 - FLOOR JACK
Fig. 5 Pump Mounting Bolts Through Pulley
1 - PUMP PULLEY
2 - PUMP MOUNTING BOLTS
3 - RIGHT ENGINE MOUNT LIFTED OFF FRAME RAIL
Fig. 6 Power Steering Pump Mounting
1 - PUMP MOUNTING BRACKET ON ENGINE
2 - POWER STEERING PUMP
3 - MOUNTING BOLTS
CS
PUMP
19 - 25
PUMP (Continued)
REMOVAL - 3.8L ENGINE
(1) Remove negative (-) battery cable from battery
and isolate cable.
(2) Remove cap from power steering fluid reser-
voir.
(3) Using a siphon pump, remove as much power
steering fluid as possible from power steering fluid
reservoir.
(4) Remove air cleaner housing and hoses to
engine. (Refer to 9 - ENGINE/AIR INTAKE SYS-
TEM/AIR CLEANER HOUSING - REMOVAL)
(5) Remove accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL)
(6) Remove clamp, then remove return hose at res-
ervoir (Fig. 7).
(7) Unthread tube nut and remove pressure hose
at pump (Fig. 8).
(8) Remove three pump mounting bolts through
pulley (Fig. 9).
(9) Remove pump (with pulley and reservoir) from
engine compartment.
Fig. 7 Return Hose At Reservoir
1 - RESERVOIR
2 - CLAMP
3 - RETURN HOSE
Fig. 8 Pressure Hose At Pump
1 - PUMP
2 - PRESSURE HOSE
Fig. 9 Pump Mounting Bolts
1 - PULLEY
2 - MOUNTING BOLTS
19 - 26
PUMP
CS
PUMP (Continued)
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