Which of the following would most likely cause a low running compression reading on one cylinder?
A) clogged air filter
B) worn cam lobe
C) cracked throttle plate
D) timing belt jumped time

Question

Quizplus · Accepted Answer

A worn cam lobe would cause a low running compression reading on one cylinder by not allowing the valve to fully open and close, resulting in incomplete combustion and lower pressure in that cylinder. A clogged air filter, cracked throttle plate, and timing belt jumped time would not typically cause a low compression reading on just one cylinder.

Which of the Following Would Most Likely Cause a Low