I just got this car with 210000 miles on it. the engine runs great have had it for a little while now, but suddenly wehn i let off the gas i feel as if the breaks are on. I have checked the emergency break, and that isnt it, I am not sure what else to check. and I dont want to take it in if its something that I can fix myself. the engine sounds fine, as it always has, the tires are new. i have replaced all of the fluids, and there were no alarms going off on the inside.. ??