Now I notice the problem when the A/C is turned on now... I had a timing belt put on several months ago so I doubt its that. It does not do it all the time. Very starnge. I do notice a idle drop here and there. Have not took it to a mechanic yet cuz I'm 99% sure I'll get screwed.. I'm mechaniclly inclined, but this one has me baffled... No check engine lite ever went on..