STEERING
TABLE OF CONTENTS
page page
POWER STEERING .........................1
POWER STEERING PUMP .................. 19
POWER STEERING GEAR...................29
SPEED PROPORTIONAL POWER STEERING
GEAR ................................. 42
STEERING COLUMN....................... 45
POWER STEERING
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
POWER STEERING SYSTEM ................1
POWER STEERING FLUID HOSES ............2
POWER STEERING FLUID COOLER ...........2
DIAGNOSIS AND TESTING
STEERING DIAGNOSIS CHARTS .............2
POWER STEERING SYSTEM FLOW AND
PRESSURE TEST........................8
SERVICE PROCEDURES
POWER STEERING FLUID LEVEL CHECK......11
REMOVAL AND INSTALLATION
SERVICE WARNINGS AND CAUTIONS ........11
POWER STEERING FLUID HOSES
(PRESSURE AND RETURN) ...............11
POWER STEERING FLUID COOLER ..........17
SPECIFICATIONS
POWER STEERING FASTENER TORQUE
SPECIFICATIONS .......................18
SPECIAL TOOLS
POWER STEERING .......................18
DESCRIPTION AND OPERATION
POWER STEERING SYSTEM
DESCRIPTION
This vehicle is available with 3 different types of
power steering. They are standard, firm-feel, or
speed-sensitive variable-effort (speed-proportional)
power steering.
The firm-feel steering gear is physically the same
as the standard gear used on some models. The dif-
ference is internal to the gear. The internal calibra-
tion gives the driver a more firm feel at the steering
wheel. It is serviced the same as the standard steer-
ing gear.
The speed-sensitive variable-effort power steering
system, better known as speed-proportional steering,
is an electronically controlled, variable-effort type
power steering system. The steering gear has an
externally mounted control valve which in conjunc-
tion with mechanical components varies steering
effort at different vehicle speeds. At low speeds lower
steering effort is provided to allow ease in steering
and parking. At higher speeds, higher effort is pro-
vided to give a more firm, responsive steering feel.
The power steering system consists of these major
components:
• POWER STEERING PUMP
• POWER STEERING GEAR
• POWER STEERING FLUID RESERVOIR
• POWER STEERING FLUID SUPPLY HOSE
• POWER STEERING FLUID PRESSURE HOSE
• POWER STEERING FLUID RETURN HOSE
• POWER STEERING FLUID COOLER
For information on the first two components, refer
to their respective sections within this service man-
ual group. Information on the third component can
be found in POWER STEERING PUMP. Information
on all other components, and diagnosis and testing of
the system can be found in this section of this service
manual group.
LH STEERING 19 - 1
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