Brand New Fuel Pump....Making Some Noise

[j.hardstyle]

I just installe a brand new Bosch fuel pump....car wouldnt start, the pump did not prime at all when the key was turned to the "on" position. I figured the FPCM was to blame, so I swapped the unit out and tried again. The fuel pump now primed and the car started.

Everyone says that the brand new pumps are supposed to be silent....well, I hear mine. I have the rear deck still off, and I am sure if I put it back on then it would muffle the sound a little....but the question is, HOW SILENT are new pumps supposed to be?


**EDIT**
I just checked the old FPCU that was in my car....saw the one pin burnt on the unit itself. The new one I put in has no burnt pins.

NOW, on the connector itself, that pin is a bit colored. The plastic isnt melted....but does this connector need to be changed or is it fine? My fuel pump runs and the car drives, havent noticed any funny business.....other than being able to hear the pump.

[j.hardstyle]

https://www.youtube.com/watch?v=Cj3jj8o ... ata_player


[youtube]Cj3jj8oxaaQ[/youtube]

[rabsusa]

https://www.youtube.com/watch?v=Cj3jj8o ... ata_player


[youtube]Cj3jj8oxaaQ[/youtube]

turn up your radio

[j.hardstyle]

This is a brand new pump...just worried about all the noise its making, as I dont want it to fail and take out this FPCU.

You can distinguish the fuel pump noise from the exhaust if you listen closely....also, you can hear the pump priming in the beginning and end of video.

[qship96]

how many miles on current fuel filter? the dirtier the filter, the more restriction it has, forcing pump to work harder{therefor louder} also.

[j.hardstyle]

I changed the fuel filter right when I got the car and have put 4500 miles on it now.

[goody90q45]

........
**EDIT**
I just checked the old FPCU that was in my car....saw the one pin burnt on the unit itself. The new one I put in has no burnt pins......

For peace of mind remove the top and bottom plates off the FPCU that's installed (4 screws each) to see if there's any melting or burning inside and compare it to your spare with the burnt pin. They're easy to resolder if there's problems with the board.

Here's one with obvious issues......

[j.hardstyle]

Thanks, I will be taking a look at the one thats installed in a few minutes. The other one, I put into my Q parts car and it got sold yesterday....it is odd, because that FPCU was controlling the old pump just fine...but it wouldnt control my brand new fuel pump. Why is that?