After car ran only ten minutes steam seemed to be coming from hood.
closed as not a real question by Brian Knoblauch, Nick C, Mark Johnson♦, Gabriel Mongeon, Larry♦ Jun 20 '12 at 17:07
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
Your 'question' really isn't a question. You should edit it before enough close votes get piled on to close it. Be specific. What do you want to know? What did you do? What did the vehicle do?
I'm going to give you the benefit of the doubt and assume you want to know what's wrong with your ride and how to fix it.
If you coolant system is not working, your engine could be overheating. That's not good. Figure out if you have a temperature gauge in your instrument cluster (see your owner's manual). If you do, keep an eye on it. If it keeps rising and is headed toward the red zone, shut down the engine ASAP (pull over to a safe place first if you're not already parked, but don't be too picky, you could be damaging your engine). You might only have an idiot light (red light that comes on when your engine is too hot), but I suspect a Cherokee is upscale enough to have a gauge.
Is your cooling fan running? Any puddles of coolant under the vehicle? What's the coolant level in the overflow tank (there should be MIN and MAX markings)? Check your owners manual for anything coolant related.
Steam from under the hood sounds like overheating or a coolant leak onto hot engine or exhaust parts. Or both. The former tends to cause the latter.