You start the engine in neutral.
If the timing is off by a few degrees the engine can start but will run rough. More than a few (depending on the engine) it will not start.
when the engine is hot the check engine light came on and the fan(is ok) don't start
On an interference engine you can have internal engine damage when you attempt to start it. On a noninterference engine it may not start or it may backfire, or miss, if it does start.
That engine needs fuel, compression and spark to start and run. You are missing one of those.
Most diesel engines are hard to start when it is cold. Plugging the diesel engine block heater in will help the engine start.
Change password for the start engine for citroen saxo?
96 VW jetta the engine rotatas but will not start
we can start it with the help of keys
Coolant is used to keep an engine in a vehicle at a temperature safe for operation. If no coolant is in the reservoir, an engine will not start.
Diagnosis: Engine Won't Start or Run Check related link below
The year, make, model and engine info would help.