Initial Inspection and Diagnostic Overview

CAUTION: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump will result.

NOTE: Make the following preliminary checks before repairing the steering system:

1. Verify the customer concern by operating the steering system.
2. Inspect Tires.
^ Check tire pressure. Correct tire pressure is 216 kPa (32 psi).
^ Verify that all tires are sized to specification.
^ Inspect the tires for damage or uneven wear.
3. Check belt and tensioner.





4. Fluid Level Check.
^ Verify that the power steering fluid level is at the full (F) mark. Add Mercon ATF (power steering fluid) or equivalent.

5. Air Bleeding
^ Verify that there is no air in the power steering system. Run the engine until it reaches normal operating temperature. Turn the steering wheel to the left and right several times without hitting the stops. If any air bubbles are present, bleed the air from the system. Service and Repair

External Leak Check-Typical Power Rack-and-Pinion Steering Gear:

6. External Leak Check
^ With the ignition switch at OFF, wipe off power steering pump, power steering pressure hose, power steering return hose, and steering gear.
^ With the engine running, turn the steering wheel from stop to stop several times. Do not hold steering wheel at stops. Check for leaks. Repair as necessary if leaks are observed.

7. Perform Turning Effort Check. Turning Effort
8. Visually inspect for obvious signs of mechanical and electrical damage; refer to the following list:
Mechanical
^ Loose tie rod ends
^ Loose suspension components
^ Loose steering column universal joints
^ Loose column intermediate shaft connecting bolts
^ Loose steering gear assembly
^ Binding or misaligned steering column
^ Power steering pump
^ Bent or pinched power steering lines
Electrical
^ Power steering pressure (PSP) switch.
^ Circuitry and connections.

9. If an obvious cause for an observed or reported malfunction is found, correct the cause (if possible) before proceeding to the next step.
10. If the fault is not visually evident, determine the symptom and proceed to diagnosis by symptom. Diagnosis by Symptom