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Question:

Chevy 5.3 air injection reactor system malfunction?

I have a 99 Chevy Silverado 1500 2wd and it has the service engine soon light on i hooked up my scanner and it reads this, air injection reactor system bank 2. Can any one help me and let me know what can be wrong. Thanks for any feed back.

Answer:

Poncho on certain models of the 1999 silverado with the 5.3 liter engine these models have the A.I.R. system.This secondary air injection reaction pump and solenoid pumps air into the exhaust manifold to clean up the emissions.Your going to need to have the dealer or local auto repair shop in your area check the pump and solenoid operation and find out which one is not working.The ones that been in my service dept most of the time the pump is working but the solenoid gets stuck and causes poor air flow that causes the service engine soon lamp.Best of luck with your silverado.

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