My car normally idles at just under 1000 rpm on the factory tach. and every once in a while the idle speed will just jump another 500 or 1000 rpm until i turn off the car and restart it. is it the idle speed motor? what could be causing this. its an 89 SC 5speed.
Any help would be awsome. Thank you
Nate
Any help would be awsome. Thank you
Nate