Knackered fuel pump?

[Solstice]

Guys, my car expired and had to be trailered home, and is now making this noise from the area around the fuel tank, I assume knackered fuel pump, what do you think?

 

[911UK]

the fuel pump is located just behind the front axle on the passenger side

car will need to be raised onto a ramp to access the pump for testing

 

[Gwsinc]

To test without lifting the car I’d remove the DME relay and jump the the fuel pump, see the first bit of this for the method: https://www.pelicanparts.com/techar...elivery_Tests/20-FUEL-Fuel_Delivery_Tests.htm

If you get the same noise it’s the fuel pump.

 

[Solstice]

Thanks, I pulled the fuel pump fuse and the noise went, so have ordered a new pump.

 

[Dom B]

Thanks, I pulled the fuel pump fuse and the noise went, so have ordered a new pump.

Just done this job on my 4S. Saved quite a bit by purchasing a Bosch OE pump online, cleaned the tank and replaced the tank filter and fuel filter at the same time. Not a difficult job

 

[Solstice]

Turns out it’s not the fuel pump, I jumped the DME relay to put power onto the pump and it ran normally, so then checked for spark which is absent (without leave!), I’m assuming the ecu is causing the pump to pulse, possibly as a result of a dodgy input.
End result, it’s off to see a man who knows more about these things than me (not difficult!)