CONDITION POSSIBLE CAUSES CORRECTION
CHIRP OR SQUEAL
(POWER STEERING
PUMP)
1. Loose power steering pump drive
belt.
1. Check and replace automatic belt
tensioner as necessary. Replace belt if
worn or glazed.
WHINE OR GROWL
(POWER STEERING
PUMP)**
1. Low power steering fluid level. 1. Fill power steering fluid reservoir to
proper level and check for leaks (make
sure all air is bled from the system
fluid).
2. Power steering hose touching
vehicle body or frame.
2. Adjust hose to proper position by
loosening, repositioning, and tightening
fitting to specified torque. Do not bend
tubing. Replace hose if damaged.
3. Extreme wear of power steering
pump internal components.
3. Replace power steering pump and
flush system as necessary.
SUCKING AIR SOUND 1. Loose clamp on power steering
fluid return hose.
1. Tighten or replace hose clamp.
2. Missing O-Ring on power steering
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 check for leaks.
4. Air leak between power steering
fluid reservoir and power steering
pump.
4. Replace power steering pump (with
reservoir).
SQUEAK OR RUBBING
SOUND
1. Steering column shroud rubbing. 1. Realign shrouds as necessary.
2. Steering column intermediate
shaft rubbing.
2. Move or realign item rubbing shaft.
3. Clockspring noisy. 3. Remove clockspring. Reinstall wheel.
If noise is gone, replace clockspring.
4. Steering gear internally noisy. 4. Replace steering gear.
SCRUBBING OR
KNOCKING NOISE.
1. Incorrect tire or wheel size. 1. Replace incorrect size tire or wheel
with size used as original equipment.
2. Interference between steering
gear and other vehicle components.
2. Check for bent or misaligned
components and correct as necessary.
3. Steering gear internal stops worn
excessively allowing tires to be
steered excessively far.
3. Replace steering gear.
* NOTE: There is some noise in all power steering
systems. One of the most common is a hissing
sound evident when turning the steering wheel
when at a standstill or when parking and the steer-
ing wheel is at the end of its travel. 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 when high veloc-
ity fluid passes valve orifice edges. There is no
relationship between this noise and the perfor-
mance of the steering system.
** NOTE: Power steering pump growl results from
the development of high pressure fluid flow. Nor-
mally this noise level should not be high enough to
be objectionable.
19 - 4 STEERING ZB
STEERING (Continued)
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