Automobile Engineering · Engine Diagnosis
If an engine is smoking heavily from the exhaust, what could be the most likely problem?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Worn-out piston rings or valve seals✓
- 2A clogged fuel filter
- 3An over-tightened timing belt
- 4Low oil pressure
Correct answer
Worn-out piston rings or valve seals
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