Wrong fuel pump?
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Freshman User
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Wrong fuel pump?
I just replaced the aft fuel pump on my 1988 f250. The previous owner had removed the old pump so I can't compare but the new pump doesn't seem to reach the fuel. I double checked to see if I ordered the right pump and I did. Is it possible I have a oversized tank? There is five gallons in the tank and it reads empty. And when I look thru the vent hole, I can see the fuel screen is barely touching the fuel. Any ideas?
Fleet Owner
Joined: Oct 2005
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From: Kentucky
The aftermarket tank mentioned previous typically holds~38 gallons.
FWIW..my old '92 F350 with a 19 gallon rear tank would also register empty with ~5 gallons left. It was annoying. Your fuel pump assembly should reach to the bottom of the tank.
FWIW..my old '92 F350 with a 19 gallon rear tank would also register empty with ~5 gallons left. It was annoying. Your fuel pump assembly should reach to the bottom of the tank.
Fleet Owner
Joined: Oct 2005
Posts: 20,780
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From: Kentucky
Perhaps I should have said close to the bottom. There is no reason why the FDM in the tank now should not be able to draw fuel if it has 5 gallons in it. My old '92 would read empty at ~14 gallons used but I have driven it many times until it ran out of fuel in another 40-50 miles.
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Thanks for the replies. it could be a 19 gal. tank and a 15 gal. pump assembly.
Any way I also have a 91 that I will have the bed off shortly for a dumpkit install. When I do I'll pull that pump and compare.
Any way I also have a 91 that I will have the bed off shortly for a dumpkit install. When I do I'll pull that pump and compare.
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