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New to me....a 1988 ford superduty 7.5l manual. When I purchased it, the gentleman told me that the previous owners to him had hooked up the fuel pump directly to the battery and that I would have to disconnect the battery when not running. I also found out that the truck does not stay in reverse and grinds trying to put it in reverse but that is ANOTHER problem (maybe the fork per my reading) Well after finding that the source of gas was a leaking "fuel resevoir" and that a replacement part is not available, and bypassing that little plastic minitank, I washed the truck inside and out and hosed down the engine. Then the truck wouldnt start. It would turn over once then click. Thought it might be the battery. Nope. Solenoid test let me know that it might be the starter. New starter......same problem. Well turns out fuel in 7 of the 8 cylinders and basically the oil pan. Found the fuel relay and the relay next to it and disconnected both. Replaced them and now the fuel pump works like it should in that the pump turns off after a few seconds. So I am assuming the relay had been stuck all the time that the previous owner thought the pump was directly hooked up to the battery (and it isn't). The problem is trying to find the replacement relays......Should I replace both relays? Should I replace the fuel injectors (I'be read this problem can be a stuck fuel injector but there was gas in all the cylinders.) What relays replace E3TB 9345 A2a and E3AF 12A646 B2A? I can't seem to find those parts anywhere but on ebay for some used parts. Amazon lists some relays that may work but doesn't differentiate between the 2 parts? I can understand discontinuing the black plastic fuel resevoir but not a relay that is needed for the truck to run? Any help or suggestions? And I do understand that I may have bent the rods trying to start the truck multiple times....just hoping i haven't
Thanks for listening
thank you. That is more information than I got from the dealer. I was given a 2nd part number but according to your list, that was 8 part interchanges ago. It is crazy that one, in this case 2 relays will cripple a truck and that the dealer can't direct you to a current part.
I found a new old stock using one of the numbers you provided and will change out those relays. Just hope didn't bend anything.
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