Symptom Related Diagnostic Procedures

TROUBLESHOOTING BALL AND NUT POWER STEERING

Troubleshooting Ball And Nut Type Power Steering:

Troubleshooting Ball and Nut Power Steering
Including Servotronics

Remedial Action:

Complaint ................................ Follow Correct Sequence of Steps


Steering stiff to turn off center or back to center, or amount of force needed is different.
1,2,3,6,7,8,11,12,14,15


Power assistance varies intermittently (steering becomes jerky)
1,2,6,11,14,15


Level of power assist at steering wheel varies (wheels are correctly balanced)
1,2,5,6,10,11,12,13


Poor straight ahead feel (floating feeling)
5,6,8,9,10,12,13,14,15


Noise from steering when driving in a straight line (steering wheel not turned)
1,2,3,4,7,8,17


Noise from steering when turned off center
1,2,4,6,7,8,16,17,18,19


Rattling sound when driving over bumpy surfaces with steering turned off center line
6,7,9,10



Additional test for Servotronic

Servotronic Action:

Complaint ................................ Follow Correct Sequence of Steps


Steering stiff to turn with car at a stand still
S1,S3,S5


Steering stiff to turn when driving car, but satisfactory when standing still
S4,S5,15


Steering too light when driving car, but normal when standing still
S2,S4,S5,15


Steering alternates between stiff and light action when driving car
S3,S4,S5