Ok ill list everything i have noticed.
The car idles at 600rpm and it sounds sometimes like it is going to stall, because the car starts to vibrate.
When I open the hood, and listen to the engine, about every 3 seconds it sounds just like the engine is taking a gasp of air.
And also I have noticed a crack in my radiator where the green coolant leaks out.
Can you guys link any of this together and maybe figure out what might be going on? Thanks for responding.

The car idles at 600rpm and it sounds sometimes like it is going to stall, because the car starts to vibrate.
When I open the hood, and listen to the engine, about every 3 seconds it sounds just like the engine is taking a gasp of air.
And also I have noticed a crack in my radiator where the green coolant leaks out.
Can you guys link any of this together and maybe figure out what might be going on? Thanks for responding.