Oil leaking into antifreeze, engine shuts off, and bad idle

[BIGCJ]

Hi everyone, I'm doing some work on my car, I'm having problems with oil leaking into antifreeze. were could the oil be leaking into the antifreeze at?
Also I'm have problems with the engine shutting off when driving or in idle and the RPM jumping or going up and down, from around 400RPM to about 3000RPM.

It also smells like not all the gas in being burned.

Last thing, the ABS light never gos off.

The car is a 1996 Chrysler Cirrus Lx 2.5L V6

[dawnnewsome3]

Headgasket maybe? Some intake manifolds have water jackets that can leak.

[Davescort97]

Check for a vacuum leak. It will make the RPM's high and will make it idle badly. Check the Idle Air Control (IAC) valve on the throttle body.