Review on Dorman 904-214 Vacuum Pump for Ford/Dodge Trucks Models with Electrical System, Black by Billy Danaher

I bought these pumps for my 2003 Ford F250 6.0 Superduty. The first didn't work. I thought it was a wiring problem. Couldn't find anything until the return date passed. Keep searching. At this point I figured if that's a bad pump then mine is bad because it didn't come back on time. I ordered a second one with the same result. Bought a Ford OEM, works great. I don't usually have a problem with Dorman, this wasn't one of them.