I Disconnected My Car Alarm And It Still Won't Start. What Do I Do?

If you disconnected your car alarm then it probably shouldn't work.  if you mean you reconnected it then maybe you are missing something like a wire is not right or something.  If the car is not starting that could be anything.  You may want to read your vehicles owners manual for more info.  Some of them have buttons all over the car for safety measures and if you trigger or accidently push one then the car wont start.  I would maybe call your auto parts store, and see if they have any advice so you don't have to take it to a mechanic if you cant figure it out.  I had a car like that once, and I hit a bump and it would not start.  The car was not built here in the US.  In the trunk there was a button that went off and I had to reset it to get the car to start.  I had to pay a mechanic $40.00 then to figure out the problem.  Good luck.