Power Steering System Excessive Noise

1. Is fluid level correct?
YES Go to step 3.
NO Refill or drain to correct level, bleed power steering system. Service and Repair
2. Is the problem resolved?
YES End
NO Continue.
3. Is pressure hose from pump to box touching body in a hard foul condition?
YES Reroute hose away from body.
NO Go to step 5.
4. Does noise remain?
YES Continue.
NO End.
5. Is noise a whistle or hiss on full lock?
YES Noise is not a fault unless excessive.
- Compare with other vehicles
NO Go to step 8.
6. Is noise excessive?
YES Continue.
NO End.
7. Change steering box and/or pump.
8. Is noise a squeal on full lock?
YES Check drive belt tension, refer to Engine.
NO Go to 10.
9. Does squeal remain?
YES Drive belt contaminated, change belt, refer to Engine.
NO End.
10. Is noise a continuous moan?
YES Bleed PAS system See bleed power steering system. Service and Repair
NO Go to step 13.
11. Does moan remain?
YES Drive vehicle in figure 8 maneuvers.
NO End.
12. Does moan remain?
YES Continue
NO End.
13. Is noise an intermittent "grunt"?
YES See Power Steering System - Grunt.
NO Continue.
14. Is it a clunking noise?
YES Check drive belt tension, refer to Engine.
NO Contact local technical office.
15. Does noise remain?
YES Suspect suspension or drive train.
NO End.