Fuel pump buzzing

5 posts · 1,277 views · started

#1
Original: German · machine translated
Hello!

I recently exchanged the fuel tank at my bulliden, the old one leaked. I took the old fuel pump. After a short time after the start, the pump has been buzzing very loud, and I changed the fuel filter and it showed an improvement, however, it wasn't completely gone. What I noticed when disassemblying the pump in the old tank was that the hose for the return was not connected to the cover of the tank the lay was simply in the tank. With the new tank I then pulled it off and it showed up again an improvement, however, still a whirring after a few minutes drive can be heard. Does the fuel pump die?
what I still noticed is that the new tank had another small hose in it which led to the holding of the fuel pump, I guess that would be for the stand heating, which I could not connect anywhere since I have no stand heating and have also left it in it, could it have something to do with it?

greetings
mo
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#3
Moin,
wenn Du nach ein paar Minuten das Surren hörst und dann bei laufendem Motor den Tankdeckel aufmachst, verändert sich was? Zischt es leicht, wenn der Deckel geöffnet wird?

Im Zweifel die Pumpe tauschen, bekommst sie günstig fürn paar Mark oder Schilling, da sie massenhaft in viele verschiedene Modelle verbaut ist.
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#4
Hallo Georg!

Nein es zischt nichts wenn sie länger läuft und ich den tankdeckel aufmach, meinst du wegen der entlüftung?

Ich werde sie wohl tauschen.

Grüße mo
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#5
Ja, deswegen.
Pumpentausch ist ja schnell gemacht und kostet nicht die Welt. Ausserdem hat man erstmal Gewissheit, dass es daran nicht mehr liegen könnte.
In meinem hat die Pumpe kurz vor Exitus auch immer lauter gesurrt.
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