Table 16

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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) (new vehicle or 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 TABLE

SYSTEM/COMPONENT	REFERENCE (Pinpoint Test unless noted)
Check for any driveability or exhaust smoke symptoms	GO to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM TABLE INDEX for direction to repair other symptoms.
Fuel Delivery System	GO to PINPOINT TEST HC .
EVAP System	CHECK for EVAP system leaks. REFER to EVAPORATIVE EMISSION SYSTEM LEAK TEST .
Fuel Source	Talk with the customer. Since sulfur content can vary in different fuels, suggest trying a different fuel source.