Finished Clutch / IMS Job, now have scary mystery squealing noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

black_box · 08-22-2012, 10:15 AM

The AC is off. I hear the noise when trying to start the car, and then again when trying to accelerate the flywheel. I do have a stethoscope, but the noise is too intermittent to fin using this method I think

2000boxster986 · 08-22-2012, 10:55 AM

Just a thought.... what if you pulled the spark-plugs and rotated the engine by hand.... listen/feel for any roughness or rubbing. If there is some then pull the serpentine belt and rotate again. Like Eric G mentioned could be a bearing on anything connected to the engine. Maybe focus on those items closest to the driver side first. If you feel no rubbing without the belt then check all the items driven by the belt. If all that comes up negative then it possible the IMS sprocket moved during the IMS bearing install and is rubbing. If that happened then it's probably 'pull the engine time'..

Wish we could help hands on.