Whenever I drive my car in excess of 20-30 minutes, turn it off for say 10-15 minutes, and then start it up again (like running to the grocery store for something) my engine can't seem to maintain a constant idle, constantly revving up and down. In addition, I think I hear what might be close to the infamous moose sound, but I don't think that's the culprit.
The problem of course is worse during the summer than winter.
I know it's gotta be heat related, I'm just not sure where to look. The temp gage on the dash never really goes over halfway during these times.
I appreicate anyone's help.
