[Brando]

Did you replace the filter with that pump? If it's sucking air or sludge it will burn out. I'd say take the filter off and replace it, also see about taking the tank out (after draining) and have it cleaned and re-coated. This was a suggestion made to me. So far a new pump and filter and she was roadworthy after that.

Also, that little line from the bottom of the tank to the pump inlet might be clogged up. It's short enough you can replace with some rubber hose from a FLAPS and be ready to go. That or your in-tank filter might be very very dirty.