Chart 21
- 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.
| SYSTEM/COMPONENT | REFERENCE ( PINPOINT TESTS 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. |