intermittent non start problem
 

I have a 2007 concore LXI it has regular service a few months ago this problem started I drove to lunch when I came out car would roll over but not start than after it sat for a few hours it started i\I have replace the cam and crant sensor has a new battery an new plugs it was fine for about a week then it happened again it has happened two more time I have seen on the net that this seem to be an on going problem has anyone found a cure for this . dealer can not seem to fix this problem
Thanks for any help
MCS

I think you should take your car to a good mechanic.may be he'll be able to solve it.

have taken var to regular mechanic even to the dealership so far neither one has bee able to come up with an answer mean time still have same problem

when it wont start do u have spark and fuel?