Technician A says that the PCV system should create a slight pressure in the crankcase at idle. Technician B says that the PCV system should create a slight vacuum in the crankcase at 2,500 RPM. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Question 2
Technician A says that if a PCV valve rattles, then it is okay and does not need to be replaced. Technician B says that if a PCV valve does not rattle, it should be replaced. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
An example of a homeostatic control system.
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