Facet fuel pumps must pass a two step quality control process before they leave the plant, and we stand behind every product.
Pump problems almost always are a result of the installation of or the environment around the pump. The most common problem with replacement pumps is that the old filter is not replaced at the same time. If your filter is clogged and worthless, your new fuel pump cannot solve your fuel delivery problems on its own. Also, if you install a replacement pump in a filthy environment, it cannot solve your fuel delivery problems on its own. This is why we specify that a new filter be installed alongside your new pump in order to validate your warranty. And it is why we suggest that you clean the area around the fuel pump as much as possible before installation.
The required filter for each pump is listed on each pump's order page. If you have questions, let us know.