Originally Posted by mostasz
IF engine is hot and idles at high RPM try loosen Your cruise control line. They are usually too tight, and when line heats up, outer part expands, pulling the inner part and making engine idle high.
My car was doing it, i pulled over on highway traffic and loosen it, and idle is fine ever since.
3 minutes of work, and so much better
You were right it worked. Look how much it was adjusted to get slack. I am at the end of my rope so to speak.