Important: Review the drive belt system operation in order to familiarize yourself
with the system functions. Refer to 
Drive Belt System Description 
.
Visual/Physical Inspection
|     •  | Inspect for aftermarket devices which could affect the operation
of the drive belts. | 
 
|     •  | Inspect the easily accessible or visible system components for
obvious damage or conditions which could cause the symptom. | 
 
|     •  | Inspect the drive belt for excessive wear, shredding, or missing
sections. | 
 
|     •  | Inspect the drive belt for contamination of excessive dirt, oil,
coolant or other substances that may affect the drive belt operation. | 
 
Intermittent
|     •  | Drive belt symptoms may be from intermittent failure of an accessory
drive component. | 
 
|     •  |  Drive belt symptoms may occur from changes in load of the accessory
drive components. | 
 
|     •  | Ambient temperatures, moisture, or engine operating temperature
can affect the drive belt operation. | 
 
Symptom List
Refer to a symptom diagnostic procedure from the following list in order
to diagnose the symptom:
|     •  | Drive Belt Whine Diagnosis |