Today while I was driving I noticed that my car would jerk once when I was accelerating. It always jerks right at 2300 rpm or so and after that it would be fine. Just one small jolt. It will also jerk/jump when in neutral. Its a manual car so i dont think its the clutch and transmission or is it the clutch thats causing it? Also just yesterday my car overheated cause the hose to the idle control broke. I think it was the oem hose too... But anyways it overheated. Could that of damaged the spark plugs? But like other than the small jerk everything else is mostly fine. I replaced the hose already and it runs cool again. But that small jerk is annoying.