Dodge 2001 Ram 1500 Owner's Manual page 1624

BR/BE
PUMP
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . 31
PUMP LEAKAGE . . . . . . . . . . . . . . . . . . . . . . . 31
STANDARD PROCEDURE . . . . . . . . . . . . . . . . . . 31
POWER STEERING PUMP - INITIAL
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
FLUSHING POWER STEERING SYSTEM. . . . . 32
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PUMP
DESCRIPTION
The P-Series pump is used on these vehicles (Fig.
1). The pump shaft has a pressed-on pulley that is
belt driven by the crankshaft pulley on gasoline
engines. The pump is driven off the back of the vac-
uum pump on the diesel engine.
Trailer tow option vehicles are equipped with a
power steering pump oil cooler. The oil cooler is
mounted to the front crossmember.
NOTE: Power steering pumps are not interchange-
able with pumps installed on other vehicles.
Fig. 1 P-Series—Pump
1 - RESERVOIR CAP AND DIPSTICK
2 - RESERVOIR
PUMP
TABLE OF CONTENTS
page
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . 36
PULLEY
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . 36
HOSES - PRESSURE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
HOSES - RETURN
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION
Hydraulic pressure is provided by the pump for the
power steering gear. The power steering pump is a
constant flow rate and displacement, vane-type
pump. The pump is connected to the steering gear
via the pressure hose and the return hose. On vehi-
cles equipped with a hydraulic booster, the pump
supplies the hydraulic pressure for the booster.
DIAGNOSIS AND TESTING - PUMP LEAKAGE
(1) Possible pump leakage areas. (Fig. 2).
STANDARD PROCEDURE - POWER STEERING
PUMP - INITIAL OPERATION
WARNING:
CHECKED WITH ENGINE OFF TO PREVENT INJURY
FROM MOVING COMPONENTS.
CAUTION: Use MOPAR Power Steering Fluid or
equivalent. Do not use automatic transmission fluid
and do not overfill.
Wipe filler cap clean, then check the fluid level.
The dipstick should indicate COLD when the fluid is
at normal temperature.
(1) Turn steering wheel all the way to the left
(2) Fill the pump fluid reservoir to the proper level
and let the fluid settle for at least two (2) minutes.
(3) Raise the front wheels off the ground.
(4) Slowly turn the steering wheel lock-to-lock 20
times with the engine off while checking the fluid
level.
PUMP
THE FLUID LEVEL
19 - 31
page
SHOULD BE