| • | Review the Exhaust System Description and Operation in order to familiarize yourself with the system functions. Refer to
Exhaust System Description
. |
| • | All diagnoses on a vehicle should follow a logical process. Strategy Based Diagnosis is a uniform approach for repairing all systems. The diagnostic flow is the place to start when repairs are necessary and may always be used in order to resolve
a system problem. For a detailed explanation, refer to
Strategy Based Diagnosis
. |
Visual/Physical Inspection
| • | Inspect for aftermarket or non-OEM devices including, but not limited to tailpipe extensions, headers, and exhaust cutouts. This could affect the operation and proper performance of the exhaust system. |
| • | Verify the exact operating conditions under which the problem exists. Note factors such as engine RPM, engine temperature, engine load, and frequency of the problem. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause any symptom. |
Intermittent
Test the vehicle under the same conditions that the customer reported in order to verify the system is operating as designed.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptoms:
