Fuel Heater Fuse Blowing Ford Diesel

Wilson’s Question: My 2003 Ford Diesel pickup keeps blowing the fuse for fuel heater. Even when I replace the fuse, it’s hard to start and stalls. What should I check first?

Answer: Yes, I had one like that a couple weeks ago. I ended up changing out what Ford calls the “horizontal fuel treatment module”–which is in reality a fuel pump module assembly. And interestingly enough, the new replacement fuel pump module did NOT have a heating element in it like the last one. They must have been having problems with the heater in the original design and have now left it out.