mY CAR USED TO IDLE AT 1000 RPM, NOW IT IS BETWEEN 600-800 AT IDLE. WHAT SHOULD I BE LOOKING FOR?

Sorry for the caps

mY CAR USED TO IDLE AT 1000 RPM, NOW IT IS BETWEEN 600-800 AT IDLE. WHAT SHOULD I BE LOOKING FOR?

My '02 with Vulcan idles around 1000-1100 on a cold start. After it warms up it idles right around 700-750.

My vehicle goes to 1000 on cold start but very soon drops to 600-800 rpms.

My 03 will be at 13-1400 on a cold start... then after just a minute drop to 1000.... sit there till its warm and then will be at 800 like the rest here.