Originally Posted by cruzinquick
Mine was very quiet and couldn't really hear it either. When the car is running it's even harder to hear. If you put them + to + and - to - you should be alright.
Was your car an inventory reduction car? The ones that sat around for 2 years? I suspect all of those have the plastic dry up and break.
Actually it is not the plastic - it is the magnet that breaks.
heres mine:
Pump3.jpg