Whats up everyone!
Had a question about the fuel sending unit on top of the tank.
Truck :73 k20 (dual tanks )
Only left tank in use...now it has two lines (on top of sending unit )...the 3/8 one goes to fuel pump right? And the smaller one (1/4? ) goes to what vent? Or return ?
The smaller one is pretty plugged. ... but if that line IS a return....well my fuel pump only has two port.s...
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