A burned valve causes a misfire that is evident at idle but not at higher engine speeds.

Name: A burned valve causes a misfire that is evident at idle but not at higher engine speeds.
Brand: Quizplus
Rating: 4.9 (35 reviews)

Question

Quizplus · Accepted Answer

A misfire from a burned valve typically happens at low engine speeds due to the valve not sealing properly, but may not be as noticeable at higher speeds when there is more air and fuel entering the engine to compensate.

A Burned Valve Causes a Misfire That Is Evident at Idle