98 concorde LXI starting problems

Ok so my wife apparently didn't think it was important when the speedo quit working a couple days ago well then it apparently got "a little warm" then i seen her out today and it was HOT so i had her to pull over and turn it off well now it won't start and the battery is low i jumped it and got it turning over good but still no start, it tries, sounds like it's firing but,.? there is no sign of water under the car and not alot of oil, (there is a little but i think it was already leaking a little) if anyone knows where to start please let me know thanks,

try your crank sensor. Sounds like its not working.

I hope you didn't get the engine so hot that you've warped a cylinder head. That is very possible in addition to a blown head gasket if it ran hot. Either scenario is pricey and will cause a no-start and with aluminum cylinder heads, it doesn't take much to warp them.

thanks guys i'll check that stuff, P.S. got it running and now it's idling really rough and won't hold charge if i hook it up to another car through jumper cables then it seems to run fine should i try the alternator?