engine comes down? the engine winds down back to its idle, then drops below idle point then raises back and teeter totters back and forth until eventually it stalls out. It started last summer, when it started getting colder out, it didnt do it anymore, engine ran fine, all winter engine started up fine, ran great, etc. What could be the cause of this problem? Thanks.... Also, this car is a
1991 Oldsmobile 98 , ive replaced alot of stuff on it, the engine is in great shape, trans is great, everything on it is fine except this little issue. the car once it starts going runs fine and performs fine. just only if i sit in one spot it will start to do this. thanks..