pw1981
Well-Known Member
My Expedition CEL is on with a P04F0 code. My basic code reader wouldn't even read that code, but my bluetooth one with an app did. It translates the code as "Manufacturer Defined."
I did some Google searching and found its something to do with EVAP fuel pressures. I also found a TSB with a bunch of stuff to check and make sure it was secure (TSB # 21-2280) and I don't find any loose connections. The TSB says to "refer to the PC/ED for normal diagnostics" if nothing was found to be loose.
Wondering if anyone has run across this before and could offer any suggestions.
I did some Google searching and found its something to do with EVAP fuel pressures. I also found a TSB with a bunch of stuff to check and make sure it was secure (TSB # 21-2280) and I don't find any loose connections. The TSB says to "refer to the PC/ED for normal diagnostics" if nothing was found to be loose.
Wondering if anyone has run across this before and could offer any suggestions.
