Mazda CX-5 Service & Repair Manual: Exhaust & Emissions

Valve, Valve Spring, Valve Seal, Valve Guide

Purpose, Function Valve The intake valve is pressed down by the cam, the intake air passage is opened, and air is introduced into the cylinder. The exhaust valve is pressed down by ...

Exhaust Manifold

Purpose, Function By lengthening the exhaust passage, the transmission of exhaust pressure waves to other cylinders can be delayed, and the amount of gas exhausted from a cylinder and for ...

Other materials:

Positive Crankcase Ventilation (PCV) Valve
Purpose, Function Prevents release of blow-by gas (unburnt gas) into the atmosphere. The PCV valve is open/closed by the intake manifold vacuum. Construction The PCV valve is installed to the oil separator. The PCV valve consists of a spring and valve. ...

No.28 Fuel Filling Shut Off Concerns
28 FUEL FILLING SHUT OFF CONCERNS DESCRIPTION Fuel does not shut off properly. POSSIBLE CAUSE PCM DTC is stored. Nonreturn valve malfunction Pressure c ...

Expansion Valve
Purpose The expansion valve atomizes liquid refrigerant to facilitate cooling of the evaporator. Function The expansion valve reduces the pressure of liquid refrigerant rapidly to facilitate vaporization of the atomized refrigerant at the evaporator, and adjusts the refr ...