When it gets stuck on high idle then you shut car off and restart will go back to normal idle for a while but then will get stuck again. I am having to shut car off frquently when in route to get it to stop....getn worse
My car keeps sticking on high idle and nobody seems to know whats wrong with it? on 1997 Buick Skylark
sounds like an idle control valve. you need to have a good shop properly diag it for you to verify the failure and pin point the failed part.