Hyundai Elantra HD: If engine turns over normally but does not start
1. Check fuel level.
2. With the ignition switch in the OFF position, check all connectors at ignition, coil and spark plugs. Reconnect any that may be disconnected or loose.
3. Check the fuel line in the engine compartment.
4. If the engine still does not start, call an authorized Hyundai dealer or seek other qualified assistance.