Automobile Engineering · Engine Diagnostics
What causes the cam lobes to make a ticking or tapping noise in the engine, especially at idle, which is often rhythmic and varies in intensity?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When the cam lobe is subjected to heavy load.
- 2When there is insufficient lubrication in the cam lobe.
- 3When the cam lobe is hot.
- 4When the cam lobe wears out.✓
Correct answer
When the cam lobe wears out.
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