Ford Mustang (1999-2004) Service Manual: Inspection and Verification

CAUTION: Do not hold the steering wheel (3600) at the stops for an extended amount of time. Damage to the power steering pump (3A674) 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 the tire pressure. Refer to the Vehicle Certification (VC) label.
  • Verify that all tires are sized to specification.
  • Check the tires for damage or uneven wear.

3. Belt and Tensioner Check

4. Fluid Level Check

  • Verify that the power steering fluid level is within the appropriate indicated range, hot forthe 3.8L engine and cold for the 4.6L engine. Add Motorcraft MERCON Multi-PurposeATF XT-2-QDX or MERCON equivalent.

5. Air Bleeding

  • Verify that there is no air in the power steering system. Run the engine (6007) until itreaches normal operating temperature. Turn the steering wheel to the left and rightseveral times without hitting the stops. If any air bubbles are present, refer to Purging-CII Power Steering Pump or Purging-CIII Power Steering Pump in this section.

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

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

6. External Leak Check

  • With the ignition switch at OFF, wipe off the power steering pump, power steering hoses, power steering fluid cooler (3D746) and steering gear (3504).
  • 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. Turning Effort Check

  • Refer to Turning Effort Test under Component Tests in this section.

8. Visually inspect for obvious signs of mechanical damage; refer to the following chart.

Visual Inspection Chart

Mechanical

  • Loose tie-rod ends

  • Loose suspension components

  • Loose steering column shaft universal joints

  • Loose column intermediate shaft bolts

  • Steering gear

  • Binding or misaligned steering column

  • Power steering pump

  • Bent or pinched power steering hoses

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 the following symptom chart.

    Steering System (Diagnosis and Testing)
    Special Tool(s) Dial Thermometer 0-220F 023-R0007 or Equivalent Hand Held Automotive Meter 105-R0053 or Equivalent Power Steering Analyzer 211-F001 (014-00207) or Equ ...

    Steering System Symptom Definitions
    Drift/Pull Pull is a tugging sensation, felt by the hands on the steering wheel, that must be overcome to keep the vehicle going straight. Drift describes what a vehicle with this condition does wit ...

    Other materials:

    Camshaft Journal - Clearance, Plastigage Method
    Special Tool(s) Plastigage 303-D031 (D81L-6002-B) or equivalent NOTE: The camshaft journals must meet specifications before checking camshaft journal clearance. 1. Remove the camshaft bearing cap and lay Plastigage across the surface. Refer ...

    Piston - Pin to Bore Diameter
    1. WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring out. Wear eye protection. NOTE: Piston and piston pins are a matched set and should not be interchanged. Measure the pisto ...

    Preliminary Inspection
    The following items must be checked prior to beginning the diagnostic procedures: Know and Understand the Concern In order to correctly diagnose a concern, first understand the customer complaint or condition. Customer contact may be required in ord ...