HELP! Fuel line nut rusted, can't remove fuel filter
On my 2002 GMC, the fuel line nut is rusted to the fuel filter (or maybe to the line; probably both) and I can't free it. I've done lots of whacking with hammers, PB Blaster, Shimano penetrating oil, cold spray, and plenty of brute force.
I've gotten under and sprayed it with the Shimano stuff every day for a week. I just got the PB Blaster today.
I don't think I can reasonably heat it, nor grind off the filter's nut, since I'm working with fuel line.
Any other ideas? It's starting to look like I'll have to replace the fuel line. :(
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