Dodge D150 1990 Service Manual page 819

1 9 - 4 0 STEERING
•
PUMP SERVICE DIAGNOSIS
CONDITION POSSIBLE CAUSE
C O R R E C T I O N
CHIRP NOISE IN
(1)
Loose belt.
0)
Adjust belt tension to specification.
STEERING PUMP
(1)
0)
BELT SQUEAL
(1)
Loose belt.
(1) Adjust belt tension to specification.
(PARTICULARLY
(1)
(1) Adjust belt tension to specification.
NOTICEABLE AT
FULL WHEEL
TRAVEL AND STAND
STILL PARKING)
GROWL NOISE IN
(1)
Excessive back pressure in hoses or steering
(1)
Locate restriction and correct. Replace
STEERING PUMP
(1)
gear caused by restriction. part if necessary.
GROWL NOISE IN
(D
Scored pressure plates, thrust plate or
(1)
Replace parts and flush system.
STEERING PUMP
(D
rotor.
(PARTICULARLY
NOTICEABLE AT
Replace parts.
STAND STILL
(2)
Extreme wear of cam ring.
(2)
Replace parts.
PARKING
(2)
Extreme wear of cam ring.
GROAN NOISE IN
(1)
Low oil level.
(1)
Fill reservoir to proper level.
STEERING PUMP
(1)
(2)
Air in the oil. Poor pressure hose connection.
(2) Tighten connector to specified torque.
(2)
Air in the oil. Poor pressure hose connection.
Bleed system by operating steering from
right to left - full turn.
RATTLE NOISE IN
(1)
Vanes not installed properly.
(1)
Install properly.
STEERING PUMP
(1)
Vanes not installed properly.
(2)
Vanes sticking in rotor slots.
(2)
Free up by removing burrs, varnish,
(2)
Vanes sticking in rotor slots.
or dirt.
SWISH NOISE IN
(1)
Defective flow control valve.
(1)
Replace part.
STEERING PUMP
(1)
WHINE NOISE
0)
Pump shaft bearing scored.
(1)
Replace housing and shaft. Flush system.
IN STEERING PUMP
0)
Pump shaft bearing scored.
HARD STEERING OR
(1)
Loose pump belt.
(1)
Adjust belt tension to specification.
LACK O F ASSIST
(1)
Loose pump belt.
(2)
Low oil in reservoir.
(2)
Fill to proper level. If excessively low,
(2)
(2)
check all lines and joints for evidence of
NOTE:
Low oil level will also result in excessive
external leakage. Tighten loose
pump noise. connectors.
(3)
Steering gear to column misalignment.
(3)
Align steering column.
(4)
Lower coupling flange rubbing against
(4)
Loosen pinch bolt and assemble properly.
(4)
steering gear adjuster.
(5)
Tires not properly inflated.
(5)
Inflate to recommended pressure.
J8919-68