General Studies · Automobile Maintenance
A severe loss of engine compression pressure is most commonly caused by which of the following mechanical issues?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Minor valve clearance defect
- 2Worn out piston rings or cylinder bore✓
- 3Loose alternator belt
- 4Incorrect ignition timing
Correct answer
Worn out piston rings or cylinder bore
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