High pitch whine

wstar · 04-19-2009, 04:30 PM

Quote:

Originally Posted by imag

I agree - that's almost certainly what it is. I'm not sure what all the whining is about.

It certainly sounds like the kind of sound that could be a fuel pump. The only thing is, our fuel pump is on the tank itself, and the sound seems to come from up front. Maybe the sound just carries funny though.

In any case, it doesn't really bother me, but I do hear it, and I just wanted to track down what the hell it is.

DIGItonium · 04-19-2009, 07:31 PM

Quote:

Originally Posted by wstar

It certainly sounds like the kind of sound that could be a fuel pump. The only thing is, our fuel pump is on the tank itself, and the sound seems to come from up front. Maybe the sound just carries funny though.

In any case, it doesn't really bother me, but I do hear it, and I just wanted to track down what the hell it is.

Is the fuel pump in-tank since I was thinking the fuel pressure regulator would be situated in the engine bay. If that's the case, then the regulator is loud. 350Z had this noise whose pitch changes when you rev it. It's loud on cold starts.

The_Travism · 07-29-2009, 10:32 AM

I notice a possibly similar noise. It is an intermittent high pitched whine that seems to be coming from the center dash behind where the nav system would be (I don't have the nav system or sports package, pretty much just the basic touring). I hear it only when moving and it does not vary with engine speed or car speed. Road noise does not cover it up. It sounds like one of the highest frequencies I hear on a commercial airplane when flying. It can continue for minutes or hours and stop for the same random amount of time. It isn't my tinitus as I can ignore that and it will go away, but it has a similar pitch and doesn't go away! Really kills the enjoyment of driving the car.

maro · 11-24-2010, 04:14 PM

Quote:

Originally Posted by The_Travism

I notice a possibly similar noise. It is an intermittent high pitched whine that seems to be coming from the center dash behind where the nav system would be (I don't have the nav system or sports package, pretty much just the basic touring). I hear it only when moving and it does not vary with engine speed or car speed. Road noise does not cover it up. It sounds like one of the highest frequencies I hear on a commercial airplane when flying. It can continue for minutes or hours and stop for the same random amount of time. It isn't my tinitus as I can ignore that and it will go away, but it has a similar pitch and doesn't go away! Really kills the enjoyment of driving the car.

mine does same thing only hear that noise when its moving,,car stops noise stops,,,

Quote:

Originally Posted by natenyc123

------------------------BULLETIN JUST POSTED----------------------
ALL 370Z & G37 ECUs being replaced if you bring them in.
Problem Solved: Elmination of the high pitch frequency noise coming from ECU and hurting peoples' ears.

is this true??? replcing ecu will fix the noise??

getmecoffee · 11-24-2010, 04:56 PM

Yeah replace the ECM, and the noise goes away. It worked for me

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07-29-2009, 10:32 AM	#3 (permalink)
The_Travism Base Member Join Date: Jul 2009 Location: Texas Posts: 1 Drives: 09 370Z CS M6 Rep Power: 16	I notice a possibly similar noise. It is an intermittent high pitched whine that seems to be coming from the center dash behind where the nav system would be (I don't have the nav system or sports package, pretty much just the basic touring). I hear it only when moving and it does not vary with engine speed or car speed. Road noise does not cover it up. It sounds like one of the highest frequencies I hear on a commercial airplane when flying. It can continue for minutes or hours and stop for the same random amount of time. It isn't my tinitus as I can ignore that and it will go away, but it has a similar pitch and doesn't go away! Really kills the enjoyment of driving the car.

11-24-2010, 04:56 PM	#5 (permalink)
getmecoffee Base Member Join Date: Nov 2009 Location: NY Posts: 52 Drives: Nissan 370Z Rep Power: 16	Yeah replace the ECM, and the noise goes away. It worked for me