Engine wont start

[Superbuick3]

The other day i was just stopped at a red light and it turned green so i started to go, and right when i started to pick up speed my engine shut off. It wasn't overheating, temperature was normal. There wasn't any noises or anything it just shut off, so i pulled over and tried to start it again. At first it was cranking pretty good and almost starting but it just wouldn't start. I called my friend to come out and help me jump it (luckily when it died i was only 5 minutes from my house) and it did not do anything.

[Todd Black 88]

Pull the oil cap and try to start it. Take a Look and see if the cam turns when cranking. If it doesn't your timing belt snapped.

[dnguyen1963]

Classic symptoms for a snapped belt.

[EatsHondas]

My timing belt snapped at idle about 2 weeks ago. There were no horrible noises at all, it sounded like I had just turned it off normally. When I tried to start it again, I could hear the starter buzz. The valvetrain wasn't moving and didn't make the customary 'woosh-woosh-woosh' sound when the motor is spinning but not running.

Do what Todd Black 88 suggested for a diagnosis. If the cam doesn't move, you'll have to pull the head or swap the motor. All 6 of my pistons have slight dings on the exhaust side and my #5 intake rocker sheared in half. Remember, mine went at idle. If you were moving, you definitely broke something.