So I've been reading a lot about this pump going. Mine was starting to go so I hit it with the hammer and it works, but when you have the key in the on position and the pump is running will it shut off after a few seconds if you don't start the car or will it keep runnin even if you don't turn the car on? The reason I ask this is because mine only stays on for a few secs and then it stops that little whine. Thanks again guys!