Timing belt.
No , just when the engine is running
You may get splashed with hot oil and get burned if you add oil with the car running, why don't you just turn the car off and add it??
yes.
Car would either have to be running or alternator removed for bench test
if your car has air con on it while the engine is running it will be the aircon pump switching on and off hope this helps you out nate
It is important to maintain speed while driving, unless coming to a stop. A car would decelerate if there was not enough fuel or electricity to keep the car running.
a car bomb
If it is your voltmeter that drops while the vehicle is running. Most likely the alternator isn't putting out enough volts.
faulty ignition switch
its loose
of course it is. it needs gas to move, to start, and to run