So my car has been stuttering under load, if I'm going up a hill or accelerating with rpm's below 2k. I took it to the dealer and they drove it telling me it was a misfiring cylinder. I had originally thought fuel pump but this makes more sense. They want to charge me 90/hr just to look at it. I said no, Engine isn't throwing any codes so they said ill just have to wait for it to get worse before they can fix it. Any ideas? Not hindering my daily driving, just hate having something wrong.