1996 CHRYSLER VOYAGER Service Manual

TORQUE CHARTÐ2.5L DIESEL
NS/GSFUEL SYSTEMÐ2.5L DIESEL ENGINE/2.0L GAS ENGINE 14 - 57
SPECIFICATIONS (Continued)

STEERING
CONTENTS
page page
GENERAL INFORMATION................... 1
POWER STEERING GEAR.................. 26POWER STEERING PUMP.................. 9
STEERING COLUMN...................... 36
GENERAL INFORMATION
INDEX
page page
GENERAL INFORMATION
STEERING SYSTEM AND COMPONENT
DESCRIPTION......................... 1DIAGNOSIS AND TESTING
STEERING SYSTEM DIAGNOSIS CHARTS..... 2
GENERAL INFORMATION
STEERING SYSTEM AND COMPONENT
DESCRIPTION
The power steering system consists of these four
major components. Power Steering Pump, Power
Steering Gear, 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.
It is used to direct oil from the pump to either side of
the integral steering rack piston.
Road feel is controlled by the diameter of a torsion
bar which initially steers the vehicle. As requiredsteering 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.
Drive tangs on the power steering gear pinion
shaft, mate loosely with the shaft of the steering
gear. This is to allow manual steering control to be
maintained, if the drive belt on the power steering
pump should break. However, under these conditions,
steering effort will significantly increase.
NSSTEERING 19 - 1

DIAGNOSIS AND TESTING
STEERING SYSTEM DIAGNOSIS CHARTS
STEERING NOISE
There is some noise in all power steering systems. One of the most common is a hissing sound evident at
standstill parking. Hiss is a very high frequency noise similar to that experienced while slowly closing a water
tap. The noise is present in every valve and results from high velocity fluid passing over the edges of the valve
orifice. There is no relationship between this noise and the performance of the vehicles steering system. Hiss
may be expected when the steering wheel is at the end of its travel or slowly turning when the vehicle is at
a standstill.
CONDITION POSSIBLE CAUSES CORRECTION
Objectionable Hiss Or Whistle 1. Damaged or mispositioned
steering column coupler to dash
panel seal.1. Check for proper seal between
steering column coupler and dash
seal.
2. Noisy valve in power steering
gear.2. Replace steering gear assembly.
3. Mis-routed power steering hose 3. Check for proper routing of power
steering hoses and ensure they do
contact other components.
Rattle Or Clunk 1. Steering gear loose on front
suspension crossmember.1. Check steering gear to front
suspension crossmember mounting
bolts. Tighten to specified torque if
found to be loose.
2. Front suspension crossmember to
frame bolts or studs loose.2. Tighten the front suspension
crossmember attaching bolts or
studs to the specified torque.
3. Tie rod is loose (outer or inner). 3. Check tie rod pivot points for
wear. Replace worn/loose parts as
required.
4. Loose lower control arm to front
suspension crossmember bolts.4. Tighten control arm mounting
bolts to the specified torques.
5. Loose upper control arm/ shock
absorber mounting bracket to body
attaching bolts.5. Check mounting bracket to body
attaching bolts for looseness. If
required tighten to the specified
torques.
6. Power steering fluid pressure
hose touching the body of the
vehicle.6. Adjust hose to proper position by
loosening, repositioning, and
tightening fitting to specified torque.
Do not bend tubing.
7. Noise internal to power steering
gear.7. Replace steering gear assembly.
8. Damaged front suspension
crossmember.8. Replace front suspension
crossmember.
9. Loose stabilizer bar attaching link
mounting nuts.9. Tighten the stabilizer bar attaching
link mounting nuts to the specified
torque.
Chirp or squeal (in the area of the
power steering pump). Particularly
noticeable at full wheel travel and
during standstill parking.1. Loose power steering pump drive
belt.1. Adjust power steering pump drive
belt to specified tension.
19 - 2 STEERINGNS

CONDITION POSSIBLE CAUSES CORRECTION
Power steering pump growl results from the development of high pressure fluid flow. Normally this noise
should not be high enough to be objectionable. Abnormal situations, such as a low oil level causing
aeration or hose touching the vehicle body, can create a noise level that could bring complaints.
WHINE OR GROWL (PUMP
NOISE)1. Low fluid level. 1. Fill power steering fluid
reservoir to proper level and
perform leakage diagnosis.
(Recheck fluid level after power
steering fluid is free of air.)
2. Power steering hose touching
vehicle body or frame.2. Reposition power steering
hose. Replace hose if tube ends
are bent.
3. Extreme wear of power
steering pump internal parts.3. Replace power steering pump
and flush system.
SUCKING AIR SOUND 1. Loose clamp on power steering
fluid low pressure hose.1. Tighten or replace hose clamp.
2. Missing O-Ring on power
steering pressure hose
connection.2. Inspect connection and replace
O-Ring as required.
3. Low power steering fluid level 3. Fill power steering fluid
reservoir to proper level and
perform leakage diagnosis.
4. Air leak between power
steering fluid reservoir and power
steering pump.4. Inspect and/or replace power
steering fluid reservoir or supply
hose as required.
SQUEAK OR RUBBING
SOUND1. Sound coming from steering
column.1.Check for squeak in steering
column. Inspect for contact
between shroud, intermediate
shaft, column, and steering wheel.
Realign if necessary.Note: Check
steering column for noise
without clockspriing installed
and with the steering column
shaft removed from the steering
intermediate shaft. This must be
done before removing the
steering column for a noise
complaint.
2. Check for lack or grease on
steering column dash panel to
lower coupler seal.
2.Clockspring 3. Replace Clockspring
3. Sound internal to steering gear. 4. Replace steering gear
assembly.
SCRUBBING OR KNOCKING
SOUND1. Incorrect tire size. 1. Verify that tire size on vehicle is
the same as originally supplied.
2. Check clearance between tires
and other vehicle components,
through the full travel of the
suspension.2. Correct as necessary.
3. Check for interference between
steering gear and other
components.3.Correct as necessary.
4.Incorrect steering gear supplied. 4. Replace steering gear with
correct steering gear for specific
vehicle.
NSSTEERING 19 - 3
DIAGNOSIS AND TESTING (Continued)