Strange Noise

[Nimbus117]

Not sure where I read it but it stuck in my mind. Just remember it stating than in rare occasions a moaning at low revs preceeded an IMSB failure.

I dont know if anyone can shed any light or offer alternatives but thought I had better tell you.

[Pup]

PLease chime in if you know anything about this... I may have read something like that but was almost positive there was a vibration associated and that it occurred at start up . This does not. just in the range I stated.

bc

[Nimbus117]

When you said it engine speed and not load dependant it made me think of this.

Of course if Porsche had made a left and right hand head instead of a common one, we would never have heard of an IMS.