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

1. Verify customer concern by running the engine.

2. Inspect the drive belt for chunking, fraying and wear.

3. Check the drive belt for correct routing.

Drive Belt Cracking/Chunking/Wear

V Ribbed Serpentine Drive Belt With Cracks Across Ribs

V Ribbed Serpentine Drive Belt With Cracks Across Ribs

The accessory drive:

  • has a single serpentine drive belt.
  • has an automatic drive belt tensioner.
  • does not require adjustment.

V Ribbed Belt With Chunks of Rib Missing

V Ribbed Belt With Chunks of Rib Missing

Symptom Chart

Condition Possible Sources Action
  • Drive belt noise, chirping, flutter
  • Defective/worn drive belt.
  • Misaligned pulley.
  • Pulley runout.
  • Damaged accessories.
  • Fluid contamination of drive belt.
  • Damaged or worn drive belt tensioner
  • GO to Component Tests, Drive Belt, Noise/Flutter.
  • GO to Component Tests, Belt Tensioner, Automatic.
  • Premature drive belt wear
  • Defective drive belt.
  • Misaligned pulley.
  • Pulley runout.
  • Damaged accessories.
  • Incorrectly installed drive belt.
  • GO to Component Tests, Drive Belt Noise/Flutter and Drive Belt Misalignment diagnosis.
    Component Tests
    Drive Belt Noise/Flutter Drive belt chirp occurs due to pulley misalignment or excessive pulley runout. It can be the result of a damaged pulley or an incorrectly aligned pulley. To correct, determi ...

    Other materials:

    Seats (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 120 , Power Seats for schematic and connector information. Refer to Wiring Diagrams Cell 122 , Power Lumbar Seats for schematic and connector information. Special Tool(s) 73 III Automotive Meter 105-R0057 In ...

    Manual climate control
    A. Defrost: Distributes air through the windshield defroster vents and demister vents. You can use this setting to defog and clear the windshield of a thin covering of ice. B. Rear defrost: Turns the heated windows and mirrors off and on. See Heated windows ...

    Air Cleaner - 3.8L
    Removal and Installation 1. Remove the air cleaner outlet tube from the throttle body. For additional information, refer to Air Cleaner Outlet Pipe-3.8L in this section. 2. Disconnect the connector. 3. Remove the bolt. 4. Remove the air cleaner and d ...