P2440 - trailblazer 2008 trailblazer how do i repair

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Carguy1 · Answer 1 · 2018-10-16T19:26:47+0000

Hi there,

This code indicates an issue with the secondary air injection system. Here is some info for you.

P2440 CHEVROLET - Secondary Air Injection System Switching Valve Stuck Open Bank 1

Read more: https://www.autocodes.com/p2440_chevrolet.html