Symptoms - Engine Exhaust
Diagnostic Starting Point - Engine Exhaust
Begin the system diagnosis by reviewing the exhaust system description and operation. Reviewing the information will help you determine the correct symptom diagnostic procedure when a malfunction exists.
It will also help you determine if the condition described by the customer is normal operation. To identify the correct procedure for diagnosing the system, Refer to Exhaust System Description .
Visual/Physical Inspection
| • | Inspect for aftermarket or non-OEM devices. These could affect the operation and 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 Conditions
Test the vehicle under the same conditions that the customer reported in order to verify the system is operating as designed.
Symptom List
For the following symptoms, refer to Restricted Exhaust .
For the following symptoms, refer to Exhaust Leakage .
For the following symptoms, refer to Exhaust Noise .
| • | Exhaust buzz, groan or hum |
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