Hi I have a 2015 Chevy Silverado 1500. Has had no issues until 2 days ago I stopped at the new ampm and filled up the tank when I filled it up it kept clicking off like it was full but the gauge only read 3/4 tank I managed to keep pushing till I new it had enough that the tank was full then about 12 miles down the road it started to stumble alittle when accelerating around 30 to 40 mph and I got this weird smell from underneath and now its started a weird vibration possibly a grinding sound I dont think its transmission because if I stop and then accelerate quickly it shifts through all the gears with no issues ....

 

Welcome to the forum. Moving your post to the Silverado section of the Forum where it will get more views as this is the welcome new members section.