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:

    Switch - Deactivator
    Speed Control (Diagnosis and Testing) Refer to Wiring Diagrams Cell 31 , Speed Control for schematic and connector information. Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equi ...

    Camshaft Roller Follower
    Engine (Description and Operation) WARNING: Do not operate the engine with the hood open until the fan blade has been first examined for possible cracks and separation. The 4.6L (4V) (281 CID) Cobra engine is a V-8 with the following features: intercooled s ...

    Trim Panel - Door
    Trim Panel - Door Removal All vehicles 1. CAUTION: Use a shop towel or similar material between the tool and the front door trim panel or damage to the front door trim panel may occur. Position the window regulator switch plate (14527) aside. ...