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Swapped an air dog pump for a FASS last weekend after a fuel issue on a 6.7
My neighbor's 2012 Ford kept losing prime and stalling out on hills around Raleigh. I was set on replacing the factory pump with another Air Dog since that's what I know. But the parts guy at Diesel Specialists convinced me to try a FASS instead. Took about 4 hours to swap the whole assembly and reroute the lines. Fired it up and the pressure held steady at 65 psi right away. We took it up a 7% grade outside town and no hiccups. The filter housing is easier to drain too. Has anyone here run both brands and noticed a long term difference in reliability?
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the_drew2mo ago
Swapped my 04 F-250 over to a FASS about two years ago after having nothing but trouble with the Air Dog eating up seals. Pressure has been rock solid since day one and I haven't touched the filters more than once a year, even towing heavy through the mountains. That filter housing is way easier to drain too, no more fighting with a wrench on the factory bowl.
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