A: The Generator Car, like all Lionel cars with vibrating motors, can be very troublesome. First, check the I.D. hole in the center of the vibrator coil. It must be absolutely clean. Use a toothpick or Q-tip to clean it out. Make sure the fan face and the vibrator coil are also clean.
Next, put the fan shaft in a variable-speed 1/4-inch drill chuck. Just tighten it by hand. Running the drill slowly will allow you to see whether the fan shaft is straight and true. If the shaft is bent, straighten it. These steps are usually all that’s necessary to get a Generator Car back in action.