Hi all. I noticed a sound coming from what seems the passenger rear wheel; kind of a buzz/whine. Doesn’t seem to be coming from engine. Fuel pump? Is this normal or is the pump on its way out?
https://youtu.be/90wJdScB9Hg
Thank you,
Jay
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'01 325Ci Convertible, 5-speed
'01 740iL, Stahlblau with beige interior & 18" M-Pars, GROM bluetooth
'03 X5 3.0 six cyl, Gray on gray
Definitely fuel pump noise. When was the fuel filter replaced last? Has the pump ever been replaced?
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Don’t know on either - just bought the car 3 or 4 months ago. Maybe do fuel filter and see if it changes? And if not, plan on the pump going soon? Runs fine at the moment - but the moment the pump goes, I bet she no run so good.
Are these fuel systems pressurized?
Thank you
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'01 325Ci Convertible, 5-speed
'01 740iL, Stahlblau with beige interior & 18" M-Pars, GROM bluetooth
'03 X5 3.0 six cyl, Gray on gray
Remove the back seat bottom and access cover on the right side and check the pump. The original ones have a mfg date and a one time crimp type clamp on the hose. If it is original or a cheap aftermarket China part, I would change it. New vdo (oem) pump is about $150. Same part that bmw dealer sells for a fraction of the price. You can try replacing the fuel filter first but risk getting stuck somewhere if the pump quits. Fuel pressure should be about 50 psi.
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