Chart 21
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- Exhaust System Concerns: Odor (Sulfur or Rotten Egg Smell)
NOTE:
A slight sulfur smell may be normal. Catalysts with less than 8,000-16,000 kilometers (5,000-10,000 miles), either from a new vehicle or new catalyst, are likely to have a sulfur smell due to the highly active state of new catalysts. Installing a new catalyst may actually make the symptom worse.
EXHAUST SYSTEM CONCERNS: ODOR (SULFUR OR ROTTEN EGG SMELL) SYMPTOM CHART
| SYSTEM/COMPONENT | REFERENCE (article 5 Pinpoint Test unless noted) |
|---|---|
| Check for any driveability or exhaust smoke symptoms. | REFER to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for direction to repair other symptoms. |
| Fuel Delivery System | GO to PINPOINT TEST HC . |
| Fuel Source | Talk with the customer. Sulfur content can vary in different fuels. Suggest trying a different fuel source. |