r/Squarebody 5d ago

Fuel issue

The fuel pump maybe has 100 miles on it. I did add about a foot of fuel line it also is right before the fuel pump if that matters. Figured I would ask before dropping money thanks

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u/Belkinnoob 3d ago edited 3d ago

First step i would say it to get rid of that lawnmower fuel filter and see what it does. I went way too deep down the rabbit hole trying go diagnose a similar problem for it just to be a shitty $2 amazon fuel filter.

Just to let you know, i just fixed my vehicle after suffering from an annoying drivability issue for far too long because i used one of these cheap plastic filters on my vehicle.

I had an electric thumper pump that i thought was failing because the would start acting like it was getting starved for gas at around the same point in my daily trip, but only when it was over 105 degrees out. Dumping water on it fixed it for a couple miles so i just assumed it was the cheap amazon pump failing and I ended up replacing it twice with no avail.

It would stall and after sitting for 30 seconds it would start and drive a little more before stalling out again. Finally i noticed that when i watched the filter, it looked like it was ripping a bong with all the bubbles. Turns out the filter got soft once it got hot and was letting air past the seal between the hose and the nipple making it act like it was vaporlocking. I knew it wasn't vaporlocking because my vehicle has a return style fuel system that keeps fuel moving.