A car has oil smoke from its exhaust during deceleration. Technician A says that bad valve guide seals could be the cause. Technician B says that worn piston rings could be the cause. Who is right?
A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Both Technician A and Technician B could be correct. Bad valve guide seals and worn piston rings are both causes of oil smoke from the exhaust during deceleration. It is possible that both or either of these issues could be present in the car.

A Car Has Oil Smoke from Its Exhaust During Deceleration