Thread: Noisy Fuel Pump
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bobross bobross is offline
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Join Date: Jan 2014
Location: Portland, Oregon
Posts: 30
Noisy Fuel pump

Okay. I ran three tanks of gas through since I messed with the fueling system (new filter, quick disconnects, AFxied). Louder pump noise persists. Mileage has been 30 mpg, 36 mpg and 32.5 mpg. Prior to all this, regularly got 42-43. I adjusted the AFxied for the three tankfulls, at 7, 5, and 4. With this kind of mileage/range, may as well get a Sportster, lol.

So, my thought is to take off the tank and check everything. Make sure no hoses are kinked or pinched. Fuel line disconnects firmly connected. filter not installed backwards. If nothing is obvious, thinking to replace the fuel pump.

fuel pumps run from $30 to $425, the latter being the BMW part. Beemer boneyard has some for around $200 plus. I would trust them. I see some others for $69 that claim to be quieter and have a lifetime guarantee. Anybody have some experience in this area?
Old 02-01-2018, 10:42 AM
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