GMC2015

For your case, the best thing to do for performance would be to regear to 4.10s and get a custom tune. Together, they’ll make the truck alot more driveable and responsive. Ditto on the e85, it added a nice bump in performance on my old 2015 4.3.

I know this is an old thread, but I'm basically having the same problem as the OP. On a freshly paved road, the truck will ride really smooth like butter. But ANY imperfection in the road comes up, than the whole truck jostles and vibrates like crazy. Been like this since I bought it. I should mention that my truck is a single cab short bed 2WD on 20's. That may have something to do with the rough ride, but even my 2005 Sierra with the exact same configuration rides 10x smoother on rough roads.

I'll put my 00.02 here. I bought my truck last year and immediately noticed the radio reception was TERRIBLE. Static with 95% of the stations I listened. The only way I could stand it was by listening with iPhone plugged in playing spotify. Last week I dropped off my truck for a few warranty fixes, including an erratic issue with the screen going black. They did a few updates to the module and that was it. Since I've picked it up, my radio has been crystal clear with good reception. Finally I can listen to FM radio without getting pissed. I should also mention that my truck doesn't have the bose system.

An uncle of mine who owns basically the same truck as you, with it being a 2016, said the same thing about the sluggishness. Last week, he had it custom tuned on a dyno for 93 octane and man it moves now. The tune will completely transform your truck no doubt.

I might be wrong, but I think all 2014+ K2XXs have factory cruise control.

Does it really make a difference? These trucks are already pretty safe as it is.

My 2015 GMC Sierra regular cab short bed has so much rake that it's ridiculous! But nothing that a 3/5 drop can't fix In comparison, my dad recently purchased a mint 2005 GMC Sierra single cab (basically the same model as mine but 10 years older) and it has only a small amount of rake.

I was at a dealer yesterday and noticed this gas pedal flex is still on the 2017s. GM should've done something by now.

Thanks! Yea the stock wheels looked nice but I've since traded them for 20 inch Denali rims, which I'm probably gonna change again anyways. If this truck had the 5 speed that they still put in the trucks in Mexico then I would never sell or trade.

Should've added a picture of mine.

I'm just gonna add this: If anyone that drives a 4.3 with AFM and has the dreaded vibration/shake in V4 mode, either clamp or delete the exhaust valve. Doing this made the truck SO much smoother with the v4-v6-v4 transitions, and the shake is 95% gone. I haven't even noticed any drone with the valve open.

Yea I know what you mean. I'm guessing the dealer added it to both our trucks before purchased. If it's just a simple stripe down the side it doesn't look bad, to me at least.

Just curious if anyone has a pinstripe on their truck? With the exception of my truck and my dad's 2016 2500 duramax I've never seen another k2xx with a pinstripe.

The fuel pump priming when you open the door is a new feature on the 2017s, probably to shorten the start times on the DI engines. As for the surging, I've seen some posts on people having to replace the torque converters on brand new 2017s because of that.

You know I could be wrong, but I think I read about a few people have to replace the torque converters on their 2017s too, so who knows.