Ford Mustang Service Manual: Inspection and Verification

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

The accessory drive:


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

Symptom Chart


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.
    Accessory Drive (Diagnosis and Testing)
    Accessory Drive (Description and Operation) Component Locations- 3.8L   Component Locations-4.6L   ...

    Component Tests
    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 Cracki ...

    Other materials:

    Torque Converter Cleaning And Inspection
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque converter clutch control Line pressure controls The transm ...

    Powertrain Control Module (PCM)
    Electronic Engine Controls (Description and Operation) The electronic engine controls consist of the following: powertrain control module (PCM) throttle position (TP) sensor idle air control (IAC) valve engine coolant temperature (ECT) sensor ...

    Under hood overview
    3.7L V6 Engine A. Battery B. Engine oil dipstick C. Engine oil filler cap D. Brake fluid reservoir E. Air filter assembly F. Engine coolant reservoir G. Windshield washer fluid reservoir H. Power distribution box 5.0L V8 Engine A. Battery B. Eng ...