Garage Cabinets, Garage Storage, and Garage Organization

I cant figure this one out. While cruzing down the road, it's fine. But my SLK revs the motor all by itself when I come to a stop sometimes??? What the hell? It will rev up fairly slowly, never reach redline and slowly drop down again unless I give it gas. I dont understand, anyone have any ideas???

Thanks Army.

rough idle but normal running above idle means the idle speed and mixture may be incorrect. try cleaning the throttle valve, adjust idle speed. loose or disconnected vacuum hose or EGR valve stucked open can cause poor idling. defective fuel injectors could cause such behavior too.


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Windz