low pitch whine from auxiliary water pump 02 4.6is - Page 3

yeowzer · #21 12-13-2006, 11:00 AM

I have the same problem but only seems to happen until the engine warms up and then it goes away. Mine is not that noticeable.

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Pipes · #22 12-13-2006, 12:21 PM

Quote:

Originally Posted by wheelman

Its called FREE advice woodranch.......no one is wasting anyones time here. Just trying to help everyone out. Relax.........

Thanks for replying to that wheelman. I mean, that's what worked for me having similar symptoms, that doesn't mean it going to work for every X5 out there.

Back to topic: I still bearly hear the whinning after changing out the aux. pump, but it's alot less noticeable then it was, so I would say that the aux. water pump wasn't the ONLY source of the problem, BUT my pump was amplifying the noise quite a bit.

The noise WAS coming from the aux. water pump though. To check, turn engine off, and climate fan on to low speed (one notch is enough to turn the pump on). Then open hood. The whinning noise is from behind the driver side head light (aux. water pump location). If you can't hear, then try different heat settings (mine whines at medium heat, about 22 degrees C).

Now there must be something else oscillating the pump (noise going up and down). I beleive it's the heater valve opening and closing (if you touch the heater valve you can feel it click open and closed). My question is, is it normal for the heater valve to do this?

Someone hear said the the dealer told them it was the aux pump AND the heater valve to be replaced?

Again, just my situation...

woodranch · #23 12-14-2006, 11:23 AM

Sorry guys that I jumped on you.........but this whining noise is driving me nuts.The whining noise will completely stop if you A)turn off the fan or B) turn the climate control down to 60 degrees.If the climate control is at 60 degrees and the fan is on you will not hear the pulsating whining but as soon as you move up the tempature up the whining sound starts.My whining sound is constant and quite bothersome.Again sorry about the previous response but I was just bummed that was not the solution.How can the dealers not have an answer to this problem when so many of us have it?

Griza · #24 12-14-2006, 12:24 PM

I really only hear my noise while stopped with the heat on at any temp and any fan speed. I would imagine that it is a bearing or something that has to do with the fan motor controlling the hot air output. It is amazing that the dealers just accept this as normal even in their own cars.