There is a motor of some kind that makes a lot of noise when we first start
the car. It stays on for about 30 seconds shuts off and starts again for
about a munute or more than shuts down for the duration of the trip.. It
then repeats when car is started again. We can't hear it inside the car
only when you open the door. I have gone to the rear of the car when the
noise is going on and I can't tell exactly where or what motor is going on
and off. Could it be a motor in the gas tank? I have no idea.