Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Wheel Drive Shafts
Begin the system diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation will help you to determine the correct symptom diagnostic procedure when a malfunction exist. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Wheel Drive Shafts Symptom Related Diagnostic Procedures Refer to Propeller Shaft Notice in Service Precautions in order to identify the correct procedure for diagnosing the system and where the procedure is located.

Symptoms - Wheel Drive Shafts
Before beginning diagnosis, review the system description and operation in order to familiarize yourself with the system function. Refer to Wheel Drive Shafts Description and Operation.

Classifying the Symptom
Wheel Drive Shaft symptoms can usually be classified into the following categories:
^ Noises
^ Vibrations
Noise related concerns are diagnosed within the Wheel Drive Shafts section.

Visual/Physical Inspection
^ Inspect the system for aftermarket devices which could affect the operation of the Wheel Drive Shafts.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.