1990 cherokee

so it idles at 1k-1200 rpm in the morning, its cold, but it stays there. every once in a while it will drop down to the 700 range. ?????vehicle is stock and not maintained before i got it that i know of, is it a normal adjustment

Well, that's a bit high for the idle, but it's not too high. It wont cause any serious issues I would think and it'll help your rig to warm up all that much quicker.

You may want to have a look at the -
Idle Speed Stepper Motor - (aka Idle Air Controller / IAC)

http://www.lunghd.com/Tech_Articles/Engine/Basic_Sensors_Diagnostics.htm

Bookmark this page bud... You'll thank me later. :licka: