Does it turn over at normal speed or "drag"?
If it drags could be a weak starter
Loose or corroded battery cable?
it could also be poor maintenance....if you have not changed your oil, oil filter, done a tune up, replaced your thermostat or checked your coolant yeah your engine is going to be messed up....spark plugs could also be an issue, when is the last time they were replaced? boots too? distributor? belts need replaced when doing a tune up too...if your check engine light is on you may have an O2 sensor that needs replaced, a fuel pump, fuel filter, if your brake light is on it could be a leaky brake master cylinder.....but that will not cause your engine problems that's separate.....just threw it in there for future reference.
causes: .You have "automatically restart" selected.
Tracker jackers are genetically altered wasps. Disturbing the nest causes them to chase or "track" the offender, hence the name "tracker." "Jacker" is most likely derived from the kind of wasp known as a yellow jacket
Bad fuel pump overheating, bad ignition coil overheating.
Dirty fuel filter??
one reason for this is the air inlet on the petrol cap is blocked or too small causing a vacuum in the petrol tank and starving the motor.
mass air flow sensor
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if you smell it inside, it's the heater core it has a leak.
It could be the ECU engine temp sender, if its different from the guage sender
probably got a bad IAC motor
There are many causes for a computer to restart during shutdown. The most likely explanation is lack of drivers for the particular motherboard or wrong drivers installed for the particular motherboard. Regards.
check the wiring to the alternator it could be loose