So the other day my 92 F150 started acting up while running off the front tank I switch to the rear tank and immediately ran better so I assumas that the fuel pump was going out. Well it's been a week and it's been acting fine ever since. But now I noticed when it runs off the rear tank it puts fuel into the front tank. My question is what's the best way to fix this is there a way to do it without replacing the entire fuel pump assembly it's a 92 F-150 two-wheel drive with a 300 i6. Thanks everyone

 

Read this caption & the NEXT:


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Every safe fix involves pulling the FDM out of the tank. Read this & the NEXT several captions:


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FueL TANK SELECTOR VALVE, I have an 87 and mine is different than yours, but I have had it fail. junkyard replacement

 

'90-up don't use any tank-select valve.