Chevrolet Avalanche 2500 Problem Report

Chevrolet Avalanche 2500 Check Engine Light Due to Gas Cap Issue

(7 reports)

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

service light on got code po449 put on new gas cap what now -
Related Items:
One or both secondary air injection check valves may become restricted causing poor air flow re...
The fuel pump may fail causing the engine to stall and not restart.
My engine misses when it idle and when I drive it.So I tried changing the spark plus ,spark plu...
A poor electrical ground under the battery tray may cause the ABS warning light to illuminate....
A dirty throttle body may cause a lower than normal idle and possible stalling condition. Perfo...