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A compression test shows that one cylinder is too low. A leakage test on that cylinder shows that there is excessive leakage. During the test, air could be heard coming from the tailpipe. Which of the following could be the cause? A. Broken piston rings B. Bad head gasket C. Bad exhaust gasket D. An exhaust valve not seating - ANSWER-The correct answer is D. If an exhaust valve is not seating, air will leak from the combustion chamber by way of the valve out to the tailpipe and make an audib...

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an engine miss is being diagnosed using a cylinder leak- age test. Technician A says that any cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the tailpipe indicates a cracked cylinder. A only, B only, A & B, Neither . during a compression test, a

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ASE A1 (Engine Repair) Cumulative Exam A+ Pass 2026 Brand New!! an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the tailpipe indicates a cracked cylinder. A only, B only, A & B, Neither . - Answer- A only: If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in the rocker arm cover, and the top of the throttle bo...

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ASE A1 (ENGINE REPAIR) PRACTICE TEST – CUMULATIVE QUESTIONS WITH VERIFIED ANSWERS /. an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the tailpipe indicates a cracked cylinder. A only, B only, A & B, Neither . - Answer-A only: If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in the rocker arm cover, and th...

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