DaveB
Active VIP Member
v8 ? Range Technology | AFM Solutions for GM Cars, Trucks & SUVs
I have an issue with my 2010 GM where it shudders lightly every time you get off the throttle and coast, then eaaaaase up to speed again. Replaced u-joints as a first step...no change. My "uneducated gut feeling" was that it was a lockup converter issue, but after some googling, I see there are a few people who experience this and it appears to be the AFM (active fuel management) when it goes into V4 mode. Its slight, but it drives me nuts.
Truck has 90,000km and has had regular synthetic oil changes and 1 all-fluids change at 50,000km....never towed anything heavy, probably only ever seen 100km of gravel...ya, it's babied.
I have an issue with my 2010 GM where it shudders lightly every time you get off the throttle and coast, then eaaaaase up to speed again. Replaced u-joints as a first step...no change. My "uneducated gut feeling" was that it was a lockup converter issue, but after some googling, I see there are a few people who experience this and it appears to be the AFM (active fuel management) when it goes into V4 mode. Its slight, but it drives me nuts.
Truck has 90,000km and has had regular synthetic oil changes and 1 all-fluids change at 50,000km....never towed anything heavy, probably only ever seen 100km of gravel...ya, it's babied.