One problem related to check engine light on has been reported for the 2006 Chevrolet Avalanche. The most recently reported issues are listed below.
When taking off from a stop it feels like I am being bumped from behind, or like the engine just dropped out of the vehicle. Very hard shifting between 1st, 2nd and 3rd when vehicle has been driven about 50 miles consecutive. Check engine light is on but will go off intermittently.
| Manifold/header/muffler/tail Pipe problems | |
| Engine And Engine Cooling problems | |
| Check Engine Light On problems |