No, determine what is wrong with the vehicle before driving it. If the throttle is sticking open, you may not be able to stop the vehicle safely.
it prevents you from starting the engine while the transmission is in either DRIVE or REVERSE
Yes, but be wary of dropping it back into 'Drive' while you are still rolling and engine RPM is low. This will not be good for the transmission.
sounds like a vacume leak to me
The reason is that when you shift to neutral, the engine is released from the drive, and so there is no longer a load on the motor and it momentarily speeds up. I don't know who taught you to drive, they didn't do a good job. You should NEVER PUT THE TRANSMISSION IN NEUTRAL WHILE THE CAR IS IN MOTION!!!!!!!!
No a neutral safety switch allows your car to come out of park.
No your car just wont come out of park.
It won't harm anything to shut it off while in drive. Shutting off the engine will cause the will not cause any damage because only if your in an automatic. If you shut off the engine in a car with a manual based shifting system, the transmission will blow because you will not be able to shift from drive to stop to drive quick enough. On the other hand, automatic cars will shift for you, thus posing no threat to the oil pressure or anything else for that matter.Fuel injected vehicles do not inject if your not pressing the peddle and the engine revs are over idle. If you press the peddle or slow down below about 5 -10 mph, then the injectors will start up. Putting the transmission into neutral while moving will cause the engine to idle and inject fuel. Therefore you benefit nothing by putting your vehicle in neutral to coast.
So you can't max it out and blow up the engine.
Yes; it could damage the transmission.
in neutral while engine warm and running. be sure to have emergency braake on.
While stopped, and in park or neutral, move the 4wd selector to the desired 4wd mode, put car in drive or 1st gear and drive.
In brief, you will blow the engine.