Question

1. technician a says a stuck open pcv valve will cause a lean fuel condition. technician b says the pcv system removes blowby gases from the crankcase. who is correct?

technician a
technician b
both a and b
neither a or b

Explanation:

Step1: Analyze Technician A's statement

A stuck - open PCV (Positive Crankcase Ventilation) valve allows excessive air into the intake manifold. This extra air dilutes the fuel - air mixture, causing a lean fuel condition.

Step2: Analyze Technician B's statement

The PCV system is designed to remove blowby gases (gases that leak past the piston rings into the crankcase) from the crankcase and route them back into the intake manifold for combustion. So Technician B is also correct.

Answer:

C. Both A and B