Zach24

I have a 2017 GMC Sierra SLT with 60,000 miles on it. I’m having the same issues, mine is a 8 speed automatic. When I am cruising around 40–45 mph my truck wheel feel like it’s shuttering or like it’s I want to say begging for gas or something. But it does it also mainly for me going up inclines like small hills or long hills. it will also do it from 50 to 55 mph. But it’s funny, when I push my tow mode to make it come on it stops everything. When I turn tow mode off, it starts doing it again. It’s like a shuttering/sucking for gas/sputtering problem.