Popping Feeling in Gas Pedal
I recently purchased a 2009 pre-owned cobalt coupe lt and noticed today that there's a weird popping feeling in the gas pedal when accelerating from a complete stop. There are no strange sounds coming from the car and this only happens after the car has been sitting for a few hours. The car only has 46,000 miles on it, I also ran a vehicle diagnostics test through the onstar system and everything came up as being ok in the car. Does anyone have any idea what the problem could be or have had similar problems like this before?