Symptom Related Diagnostic Procedures

SYMPTOMS - TRANSFER CASE

STRATEGY BASED DIAGNOSTICS
Review the system operations in order to familiarize yourself with the system functions. All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system problem. The diagnostic flow is the place to start when repairs are necessary.

VISUAL/PHYSICAL INSPECTION
^ Inspect for aftermarket devices, which could affect the operation of the vehicle.
^ Inspect the easily accessible or visible system components for obvious damage or condition that could cause the symptom.
^ Check for the correct lubricant levels and the proper viscosities.
^ Verify the exact operating conditions under which the concern exists. Note factors such as speed, road conditions, ambient temperature, and other specifics.
^ Compare the driving characteristics or sounds (if applicable) to a known good vehicle and make sure you are not trying to correct a normal condition.

INTERMITTENT
Test the vehicle under the same conditions that the customer reported in order to verify the system is operating properly.

SYMPTOM LIST
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom.
^ Diagnostic Starting Point - Transfer Case
^ Diagnostic Starting Point - Rear Drive Axle
^ Noisy in Drive
^ Noisy When Coasting
^ Intermittent Noise
^ Constant Noise
^ Noisy on Turns in Rear Drive Axle