vibration and whine from sump

4.2 V8 32v Naturally Aspirated - 414 bhp
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RS4RAB
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Joined: Sun Nov 08, 2020 12:57 am

vibration and whine from sump

Post by RS4RAB » Wed Nov 24, 2021 12:14 am

So still struggling to get to the bottom of my car idling badly and having very little power

One thing that has been consistent during this problem is the louder than normal whine you get from these engines

After removing the bottom cover this sound is coming from the back of the sump in the middle (directly where the oil pickup pipe is)

Also the vibration can be felt here so i am sure this has something to do with my problem

I have removed the sump and all looked good, oil pick up screen was clean, i have changed the oil and replaced the PCV as thought this may have been the problem but the car stills runs the same and the noise / vibration is still present

I am now thinking could it possibly be an oil pump issue although i have never had any problems with the oil pressure light coming on, or possibly the oil pressure regulation valve

Any help would be greatly appretiated

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