Search results

Ok, maybe not every pump that uses an impeller. But its not uncommon for a dry pump with a floating impeller to make racket. When its dry the impeller will slap around in the housing. When there is fuel present in the housing it lubricates and stabilizes the impeller. I wouldn't be surprised...

If its making a marble in a blender sound then that tells me the impeller is turning. I would be more concerned with the amp draw of the motor.

Stick it in a bucket full of diesel. Any pump with an impeller will make some god awful noises when dry.