Maxmayo

What a nightmare! My new 2015 GMC Sierra SLT Crew Cab has been plagued with stutter or hesitation issues from the day I bought it. I was told it needed to learn my driving habits and all would be fine. Then I was told over the phone that it was active fuel management working as designed. I should have insisted on a test drive. It's scary to drive as you never know what will happen when you accelerate. Sometimes it does nothing them suddenly lunges forward. Sometimes it stutters up an entire hill or when trying to pass on the interstate. Highway on ramps are terrible. I gave up on the dealership I bought from and went to my trusted local dealer for help. They have been trying to fix the issue and worked on it at least three times for days - always providing a Sierra loaner. The last effort was to replace the transmission, but that made things worse! Interestingly, the loaners do not have this issue. Therefore, I do not believe this is "normal" operation of active fuel management. From Internet research, that seems to be the stock answer for underlying issues. When trying to trade this 13 month old truck, after being offered GM trade assistance, the dealer reduced the trade in value due to mechanical problems. That along with first year depreciation sets me back about $15,000. I can not afford that financial hit. GM - do the right thing and fix my truck or replace it. I should not bear the financial weight of a defective product you made and sold.

My 2015 is the same! The dealership has tested the gas, cylinder compression, electrical systems, replaced the tourqe converter, polished transmission rods snd finally replaced the transmission. The problem still exists! I have driven 3 different loaner trucks and they drive fine. Has anyone found a solution to this issue?