Visual/Physical Inspection

Visual/Physical Inspection
^ Inspect for aftermarket or non-OEM devices such as, but not including: 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 concern exists. Note factors such as engine RPM, engine temperature, engine load and frequency of concern.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause any symptom.

Intermittent
Test the vehicle under the sane conditions that the customer reported in order to verify the system is operating as designed