NO.26 EXHAUST SULPHUR SMELL [AJ (3.0L Duratec)]


26	Exhaust sulphur smell
DESCRIPTION	• Rotten egg smell (sulphur) from exhaust
POSSIBLE CAUSE	• Electrical connectors are disconnected or connected poorly. • Charcoal canister malfunction • Vacuum lines are disconnected or connected improperly. • Improper fuel pressure • Poor fuel quality Warning • The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: - Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. - Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [AJ (3.0L Duratec)].) (See AFTER SERVICE PRECAUTION [AJ (3.0L Duratec)].)


STEP	INSPECTION	RESULTS	ACTION
1	• Are any drivability or exhaust smoke concerns present?	Yes	Go to appropriate flow chart.
1	• Are any drivability or exhaust smoke concerns present?	No	Go to the next step.
2	• Inspect following: - Electrical connections - Vacuum lines - Fuel quality • Are all items okay?	Yes	Go to the next step.
2		No	Service as necessary. Repeat Step 2.
3	• Connect WDS or equivalent to DLC-2. • Turn key to ON (Engine OFF). • Retrieve any DTC. • Is "PASSED" displayed?	Yes	No DTC is displayed: • Go to the next step.
3		No	DTC is displayed: • Go to appropriate DTC test.
4	• Install the fuel pressure gauge to fuel line. • Start the engine run it at idle. • Measure the fuel line pressure at idle. • Is the fuel line pressure correct? (See FUEL LINE PRESSURE INSPECTION [AJ (3.0L Duratec)].)	Yes	Go to the next step.
4		No	Zero or low: Inspect clogged fuel line. • If normal, replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [AJ (3.0L Duratec)].) High: Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [AJ (3.0L Duratec)].)
5	• Inspect charcoal canister for fuel saturation. • Is excess amount of liquid fuel present in canister?	Yes	Replace charcoal canister.
5		No	Inspect fuel tank vent system. • If fuel tank vent system is okay, since sulfur content can vary in different fuels, try a different brand. • If fuel tank vent system is not okay, repair or replace malfunctioning part.
6	• Verify test results. - If okay, return to diagnostic index to service any additional symptoms. - If malfunction remains, inspect related Service Information and perform repair or diagnosis. • If vehicle is repaired, troubleshooting completed. • If vehicle is not repaired or additional diagnostic information is not available, replace PCM.