My boss has a 1978 jag xjs v12. He says that at idle it will rev up then drop back down to idle speed then rev again. It does this continuously. Note: I'm not doing this for my boss (he left the poor girl in a barn until the interior was covered in mold) But he might sell the car to me cheap and I want to know what will fix it. hee hee hee /ubbthreads/images/graemlins/devilgrin.gif