Cm871 vibrating and tapping like noise at 1250 and up.

[dhirocz]

Odd, I came here to make a post about the same thing...

I already had mine @m*m^2'd, and it already gotten a new damper, power steering pump and air compressor in the last 80k miles. Had a bearing roll among other things in the last 100k. Sounds like it is coming from the driver's front of the engine but it only happens under torque so I can't replicate it at a stop.

It's enough to make you worry. I wonder if this air compressor is starting to knock...oil pressure is fine, but I also suspect the damper...since it's buzzing a bit between 1200-1400 and I can't get rid of it. Ill also be pulling the front cover to see if I see anything ugly under there.

Oil pressure is fine otherwise and I'm not finding anything externally obvious. To the OP, it sounds like we are having a similar problem, except mine only does it under torque.