If it's a newer model car it could be neutral safety switch or torque convert lock out switch. Is your check engine light on?
when i am driving my toyato 2001 Eaco stops running, it will start back up
car starts but when i put it in gear it stop
I just put a new battery and alternator in my car, but when i put it in gear or start slowing down to stop..the car die out. Also the brake light is continely on.
u have a blown headlight. change both bulobs and it will stop.
No.
the new cars gear will not move unless the car is running
Your question doesn't give much detail but the car may not go into gear while you're driving (manual only) because the car's speed and engine speed are not suitable for the gear. E.g. If you're driving at 100km/h (60mph) it could become very difficult to change down to first gear.
manual or automatic?
Your car may stall or stop running after idle because of a problem with its fuel or electrical system.
That would be your transmission. It may be slipping, or you may be lossing a gear. Have it checked.
Your alternator is on its way out.
Your car engine will stop.