Chevrolet Suburban 1500 Problem Report

Chevrolet Suburban 1500 Check Engine Light Due to Restricted Secondary Air Injection Check Valve

(7 reports)

One or both secondary air injection check valves may become restricted causing poor air flow resulting in illumination of the Check Engine Light. It is often recommend to replace both check valves even if a fault code is set for only one bank of cylinders. Replacing only one valve may result in a return trip to the repair shop.

Related Items:
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Check engine light came on, took it to the shop & they said code 171 & 172. They said needs new...
Light comes on after 15 minutes of freeway speeds doesnt come in town under 45mph?
Multi miss-fire is occurring on 1 side of the engine, pistons 2, 4, & 6. Spark plugs, wires, ca...

Related Content