So here's what I'm dealing with and need some input from others that have had similar problems or had to replace a fuel pump. I have a 2019 F250 6.2 Flex Fuel. I started having performance issues that pointed to a possible bad fuel pump. (Won't go into detail because it turned into a laundry list of problems) The biggest obstetrical was replacing the fuel pump.I bought a new pump off of Amazon for close to $100 (Might be mistake #1). I swapped it out with the old one and for three days there was a noticeable difference in truck. Better performance, shorter crank times, much less stuttering up hill. Literally after three days of working fine I went to start up on the fourth morning to take my kids to school and the truck turned over for a second or two, died, and would not longer fire up, but would still crank with no issue. I buddy of mine suggested that possibly the pump being aftermarket needed to be reprogrammed in the computer to "relearn" the desired pressures and performance. I haven't had a chance to try this, but this doesn't sound like the issue to me. What it sounds like is I cheapened out on a bad pump and this is my punishment. My question to y'all is, did I overlook something before going down a second replacement pump? Fuses are good, starter is good, pump appeared to be priming when the key was turned, just didn't seem to be of a high pressure, but I have no way of testing this.

 

For what its worth.....I would replace the pump with new OEM or better. The $100 pump sounds like its trash already, and even if the oem pump doesn't fix your problem, its still nice to know its "not" the pump. A fuel pressure reading will tell if the pump failed. But I would still swap it out with better quality.

 

I”ve seen many YouTube vids of mechanics I trust chasing down issues where aftermarket parts or counterfeit parts were installed by the owner. I always try to replace with known OEM parts even if it means getting them from the stealership.

 

This. Gotta be carful with Amazon parts. Lots of fakes out there. The OEM fuel pump is close to $500.

The age old expression is as true today as it was all those years ago: If it seems too good to be true …..It probably is.

Bob