You have an air leak somewhere. A common place to start is the cold start pipe. Make sure it is in and the "O" ring is still there. Make sure the throttle plates are closing all the way, the 3 brass screws are lightly seated, the hoses to the idle motor are on tight and not leaking. If any work has been done lately on the motor go back over it, maybe you knocked a vacuum hose off somewhere. Make sure that a floor mat isn't preventing the gas pedal from retuning all the way to idle. David Teitelbaum vin 10757 --- In dmcnews@xxxx, Meyerleem@xxxx wrote: > thanks Robert; the throttle spool seems to be fine. But when I start the car > it still goes up to 3000 RPM. I assume there must be something in the idle > control that isn't functioning properly. It worked fine before the tune-up. > What would make the RPM;s jump to this speed and where do I start to look for > a way to slow it down. I'm sure I'm not the only one who has had problems > with idle speed, please help!