Fuel pump\s

[Kavadarci]

Hi
while driving my car without the back seats to troubleshoot roof noises I noticed what I believe it’s a fuel pump noise that is not as noticeable with the seats on.
the sound is pronounced and now that I don’t have sounds from the roof I can hear it well.

My question is if this is normal and how many fuel pumps do I have?
rockauto has fuel pump inside the tank and outside of the car. I don’t think I have one outside.
also should I replace fuel sending unit and where is that located?

thank you

[Vincenze]

There are rubber sleeves for fuel pumps.

The problem is the sending unit is inserted near the pump and may not provide enough clearance for a sleeve.
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If you're there, can you measure the diameter of the pump and the distance between it and the sending unit.
I believe the diameter is close to 36 mm.

Maybe, something like this will work.
https://www.highflowfuel.com/quantum...RoC9K0QAvD_BwE

[82eye]

Hi
while driving my car without the back seats to troubleshoot roof noises I noticed what I believe it’s a fuel pump noise that is not as noticeable with the seats on.
the sound is pronounced and now that I don’t have sounds from the roof I can hear it well.

My question is if this is normal and how many fuel pumps do I have?
rockauto has fuel pump inside the tank and outside of the car. I don’t think I have one outside.
also should I replace fuel sending unit and where is that located?

thank you

fuel pump runs constant. they buzz like mad if gong out but will continue on for a while until it starts driving issues. could also be you just notice it more without the sound dampening from the rear seat.
my e30 has 2 pumps. a sending unit / lift pump in the tank and a fuel pump by the passenger rear tire.

[Kavadarci]

Ok I’ll check for both