ABNORMAL EXHAUST FUME COLOR
POSSIBLE CAUSES ACTIONS
1. Poor fuel governor system
•
Consult with a dealer for repair.
2. Poor fuel quality
•
Select good quality fuel.
Use the diesel oil only.
3. Poor nozzle
•
Replace with a new nozzle if necessary.
4. Unstable burn
•
Poor spraying, improper injection timing, abnormal injection system, poor valve adjust
ment, or compression leakage, poor compression, etc. Check and repair.
POSSIBLE CAUSES ACTIONS
4. In correct valve adjustment
• Check and adjust valve clearance when the engine is cold.
- Intake : 0.008 in. (0.2 mm) - Exhaust : 0.008 in. (0.2 mm)
5. Air cleaner contamination • Clean or replace the element every 100hours of operation.
6.
Restricted aftertreatment system
• If the corresponding lamp on the instrument cluster is illuminated, perform the aftertreat-
ment system regeneration process.
• Contact your local dealer.
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