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← TechnologyWhich outcome occurs when fuel injectors in a modern diesel engine experience prolonged dribbling due to wear?
A)Increased engine power output at high RPM
B)Reduced particulate matter emissions during cold starts
C)Piston damage due to localized overheating✓
D)Improved fuel efficiency at idle
💡 Explanation
When diesel fuel injectors dribble, incomplete combustion occurs due to poor atomization and uneven distribution because the fuel doesn't vaporize properly, leading to regions of high temperature and pressure. Therefore piston damage results, rather than increased power, reduced emissions, or improved efficiency that require optimized combustion.
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