Power Steering System Diagnosis Charts - Jeep Wrangler 1997 Manual

19- 2 STEERING
TJ
DIAGNOSIS AND TESTING
POWER 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 a
standstill parking . Or when the steering wheel is at the end of it's travel. Hiss is a high frequency noise similar
to that of a water tap being closed slowly. The noise is present in all valves that have a high velocity fluid passing
through an orifice . There is no relationship between this noise and steering performance .
BINDING AND STICKING
CONDITION
POSSIBLE CAUSES
CORRECTION
OBJECTIONAL HISS OR
1 . Steering intermediate shaft to dash
1 . Check and repair seal at dash
WHISTLE
panel seal .
panel .
2 . Noisy valve in power steering gear.
2 . Replace steering gear.
RATTLE OR CLUNK
1 . Gear mounting bolts loose.
1 . Tighten bolts to specification .
2. Loose or damaged suspension
2. Inspect and repair suspension.
components .
3. Loose or damaged steering linkage .
3. Inspect and repair steering linkage .
4. Internal gear noise .
4. Replace gear.
5. Pressure hose in contact with other
5. Reposition hose .
components.
CHIRP OR SQUEAL
1 . Loose belt .
1 . Adjust or replace .
WHINE OR GROWL
1 . Low fluid level.
1 . Fill to proper level.
2. Pressure hose in contact with other
2. Reposition hose .
components.
3. Internal pump noise.
3. Replace pump .
SUCKING AIR SOUND
1 . Loose return line clamp .
1 . Replace clamp .
2. O-ring missing or damaged on hose
2. Replace o-ring .
fitting .
3 . Low fluid level.
3 . Fill to proper level .
4. Air leak between pump and reservoir.
4 . Repair as necessary.
SCRUBBING OR
1 . Wrong tire size.
1 . Verify tire size .
KNOCKING
2. Wrong gear.
2 . Verify gear.
CONDITION
POSSIBLE CAUSE
CORRECTION
DIFFICULT TO TURN WHEEL
1 . Low fluid level.
1 . Fill to proper level.
STICKS OR BINDS
2. Tire pressure.
2. Adjust tire pressure.
3. Steering components
3. Inspect and lube .
4. Loose belt .
4. Adjust or replace .
5. Low pump pressure.
5. Pressure test and replace if
necessary.
6 . Column shaft coupler binding .
6. Replace coupler.
7. Steering gear worn or out of
7. Repair or replace gear.
adjustment.