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I have an 89 F250 w/a 460. I discovered a fuel leak, and it's leaking on to electrical wires. Does anyone have a clue what size fuel lines is on these trucks? Thanks in advance!
I think these trucks use 3/8 supply lines and 5/16 return lines. This is based on GM trucks, but I'm guessing ford is the same.
If all original the fuel lines should be all nylon. Biggest issue for leaking is fuel filter has rotted out. Not sure what your issue is or placement of the leak.
