I HAVE A 2001 FORD MUSTANG GT AND I WAS DRIVING IT 2 DAYS AGO WENT TO SCHOOL TO THE STORE AND IT WAS DRIVING FINE 100% NO PROBLEMS THEN suddently IT DID'NT WANT TO START ANY MORE AND I DONT KNOW WHATS WRONG WITH IT AND ANOTHER THING IS THAT WHEN I TRY TO START THE CAR THE DASH BOARD GOAS ALL CRAZZY AND IT DOSENT SHOW THE MILEAGE IT CRAZY MAYBE YALL CAN HELP ME OUT!!!!!!

 

does the motor actually turn over when you go to start it?

 

the dashboard does that when you start the car after you've had your battery disconnected and then connected again, so you might want to check the battery and battery connections

 

like when i put the key on the on position the gauges go all crazy but the battery its good and no the car dosent start

 

Sounds like a bad ground. Check the negative battery terminal for a lose connection or corosion.