idleing

  1. D

    why does my Audi vibrate when idleing?

    could it be running on 3 cylinders when at idle speed
  2. T

    My 1995 Toyota Corrola engine has a miss when idleing and when I first take off. ?

    Once I get the speed up to about 50 to 60 m.p.h. It does fine. However when you are ideling it sounds horrible like it might die. I put fuel treatment in the car and am using Super Unleaded. Do you think it could be the fuel filter?
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