What is this noise?

Lazlo6 · 11-05-2010, 06:04 AM

So, my car is making a new noise. Sounds like its coming from just in front of the right hand side rear wheel. Is this my fuel pump? Car has never made this sound before, and there are no other issues with the car. Just the noise.
Its quite loud, but you are going to have to turn your speakers right up. (blackberry audio quality is shocking)

Thanks!

Lazlo6 · 11-05-2010, 06:08 AM

Ok so it seems i dont know how to post a vid.

http://www.youtube.com/watch?v=DuXLmfm2q0M

Papajim · 11-05-2010, 07:09 AM

Its the rear fuel pump. After you unlock the doors sends fuel to front HPFP.
I think all the new ecu updates has this and they did this to prevent the HPFP from failing (due to ubsence of fuel during startup)
Mine started doing this as soon as they replaced my last failed HPFP...

Lazlo6 · 11-07-2010, 02:32 AM

Thank you!

Trojan4evr · 11-07-2010, 04:39 AM

Quote:

Originally Posted by Papajim

Its the rear fuel pump. After you unlock the doors sends fuel to front HPFP.
I think all the new ecu updates has this and they did this to prevent the HPFP from failing (due to ubsence of fuel during startup)
Mine started doing this as soon as they replaced my last failed HPFP...

+1

11-05-2010, 06:04 AM	#1
Lazlo6 Enlisted Member 4 Rep 44 Posts Drives: 2007 AW 335i M Join Date: Jan 2009 Location: Cape Town iTrader: (1)	What is this noise? So, my car is making a new noise. Sounds like its coming from just in front of the right hand side rear wheel. Is this my fuel pump? Car has never made this sound before, and there are no other issues with the car. Just the noise. Its quite loud, but you are going to have to turn your speakers right up. (blackberry audio quality is shocking) Thanks! __________________ If only my car was as exciting as my bike
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11-05-2010, 06:08 AM	#2
Lazlo6 Enlisted Member 4 Rep 44 Posts Drives: 2007 AW 335i M Join Date: Jan 2009 Location: Cape Town iTrader: (1)	Ok so it seems i dont know how to post a vid. http://www.youtube.com/watch?v=DuXLmfm2q0M __________________ If only my car was as exciting as my bike
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11-05-2010, 07:09 AM	#3
Papajim Private 0 Rep 66 Posts Drives: E90 335i '07 Join Date: Feb 2010 Location: Greece/Athens iTrader: (0)	Its the rear fuel pump. After you unlock the doors sends fuel to front HPFP. I think all the new ecu updates has this and they did this to prevent the HPFP from failing (due to ubsence of fuel during startup) Mine started doing this as soon as they replaced my last failed HPFP...
	Appreciate 0 Quote

11-07-2010, 02:32 AM	#4
Lazlo6 Enlisted Member 4 Rep 44 Posts Drives: 2007 AW 335i M Join Date: Jan 2009 Location: Cape Town iTrader: (1)	Thank you! __________________ If only my car was as exciting as my bike
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