Inspection & Verification
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:
Complete this preliminary inspection list before repairing power steering system.
- Verify the customer concern by operating the steering system.
- Inspect tires. Check tire pressure. Verify that all tires are sized to specification. Inspect the tires for damage or uneven wear.
- Inspect belt and tensioner.
- Check fluid level. Verify that the power steering fluid level is at the full (F) mark. Add Motorcraft MERCON® Multi-Purpose ATF XT-2-QDX or MERCON® equivalent if needed.
- 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, purge power steering system. See BLEEDING under LUBRICATION.
- With the ignition switch at OFF, wipe off the power steering pump, power steering pressure hose, power steering return hose, power steering fluid cooler 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.
- Visually inspect for obvious signs of mechanical damage.
- Loose tie rod ends
- Loose suspension components
- Loose steering column shaft universal joints
- Loose steering gear mounting bolts
- Binding or misaligned steering column
- Power steering pump
- Bent or pinched power steering lines
- If an obvious cause for an observed or reported malfunction is found, correct the cause (if possible) before proceeding to the next step.
- If the fault is not visually evident, diagnose by symptom. See SYMPTOMS .