vibration at low speed

[terzmo]

2010 silverado..6 speed/308 rearend...when going slow,like through a school zone, 20mph and under, I feel a very small vibration in the steering wheel. Sometimes at speeds up to 35 mph. Problem here or in future ?? ( in 2 wheel drive....haven't tried in other trans settings)

[ChevyTech77]

Normal AFM vibration.

[Gone Again]

Put the trans in M4 or M3 and see if the problem is gone. I think at lower speeds the trans trys to stay in too high of a gear and the engine is actually lugging somewhat therefore the trans is hunting-shifting back and forth. Pretty normal!

[terzmo]

AFM ??

[ChevyTech77]

Active Fuel Management. The process in which the engine mechanically shuts down four cylinders to conserve fuel at light loads.

[travis73]

normal AFM thing,mine does it at low speeds when engine is in 4cyl mode.poor programing if you ask me.