Is it normal for an engine to rev up to ~1500 RPMs when starting? I recently had an engine scare with my car (2001 Dodge Stratus SE). Seems fine now, mechanic concurred when I had them inspect it, but I'm a little paranoid. Since it returned from the dead, I noticed my engine revs up to about 1500 RPMs when I start it, and then drops down to it's usual 600-800 RPMs until I start driving. Seems to always do it on a cold start, sometimes doesn't if it's been started recently (like if I just run into the store and come back out). Pretty sure I'm just being paranoid but just wanted to ask people who know more than I do.