2008 Vulcan 1600D Vulcan fuel pump noise

12 volt dc sound test comparison outside the bike. Original replaced do to grommet failure. Quatum replaced because of irritating whiny sound.

[@brianalspach8290]

Had exact same scenario in 2018 with my 05 Nomad with about 70,000 miles on the bike. Stock pump started to whine at varying levels. Removed and replaced filter. Still whined. Bought a new pump from Quantum and installed into OEM housing. Within 2 days it whined even louder. During all of this the bike ran okay. Just super annoying whine at start up and anything under about 10 mph. So I said whatever and just rode it for over a year and almost 8000 more miles until pump began to seize under hot riding conditions 1000 miles from home on a trip. Once everything cooled off it would run again but soon as things heated up bike would quit. I end up trucking my bike home and dicked around with this scenario not 100% sure the noisy pump was actually causing my problem with the bike dying since had ran okay with noise for so long. Quantum said if pump makes excessive squeal or whine can be from clogged filter which wasn't my problem or low voltage to the pump. My voltage on bike under seat at the source connector that runs harness plugged into was 12.4 to 12.6 so was perfect. I finally said screw it and replace entire fuel pump assembly with OEM unit at cost of about $600 . All noise completely disappeared and I've put over 6000 miles on now in extreme heat riding the hell out of the bike without the slightest hesitation. I don't know if issue was resistance in wire harness of the original unit or something internal to the pump housing itself because original pump and quantum pump both squealed when the initial problem started. But with completely new OEM unit all problems went away and bike runs amazing and is reliable again. My advice to anyone with noise is replace wish factory new pump. $600 is expensive for the factory assembly but beats the hell out of being broke down. And $600 isn't really bad when you figure the thing ran for 12 years and 70,000 miles before any problems with it occurred.