Two problems related to check engine light on have been reported for the 2011 Chevrolet Avalanche. The most recently reported issues are listed below.
Active fuel management problem - oil passing the o-rings on the pistons which is causing the check engine light to come on and one cylinder out of the seven not working at all. It caused 2 new spark plugs to break.
Service stabilitrac system indication comes on, with check engine light, and engine power reduced. Happens randomly, cannot find a "common cause" spent lots of money on pcm, bcm, memory seat module, battery cables, battery, brake light switch, etc. Etc. Dangerous condition when vehicle drops into power reduction mode.
| Engine And Engine Cooling problems | |
| Check Engine Light On problems | |
| Engine Burning Oil problems | |
| Gas Recirculation Valve (egr Valve) problems |