Which device protects the air pump from reverse exhaust pressure?

[jwb375]

Question 1

Where is the output of the AIR pump directed when the engine is cold?
◦ Exhaust manifold
◦ Catalytic converter
◦ Air cleaner assembly
◦ To the atmosphere

Question 2

Which device protects the air pump from reverse exhaust pressure?
◦ Check valve
◦ PCV valve
◦ EGR valve
◦ IAC valve

[Kaytorgator]

Answer 1

Exhaust manifold

Answer 2

Check valve

[jwb375]

TYSM

[Jossy]

Gracias!