My chrysler 300m cranks but won't start.

If your engine is cranking, at least you know the starter and the ignition switch are working properly. This also means your battery should be good since it's cranking over your engine. First, I would check all your fuses. A simple fuse could cause your vehicle to not start. Next I would check the fuel. Make sure there is adequate fuel in the gas tank and that your fuel gauge is not faulty. If the above are all okay, then it could be electrical such as a bad coil or ECU. You should be able to visit your local auto supply store and have them test your vehicle for codes utilizing your vehicle's ODB II port under the dash. If all else fails, you may have to end up a local authorized mechanic or as a last resort, your local dealer.

You may want to check your camshaft sensor. If that goes bad, it can cause your engine crank but not start.

I put a new crankshaft sensor I checked the gas flow and I put a new battery and it's still not firing up do I have to reset the codes with the machine

I am having the same issue. I have no results yet. I have done everything on that list. Except take it in. Would have to be towed. Looking for more ideas.

Where do I find the camshaft

My 2007 Chrysler 300 cranks but wont start...and the red lightning bolt came on