Refreshing an old thread...
I have a 2001 SL2 with 78K, and am having this same problem. During the winter it was fine, leaking a few drops at night but no hitemps. Now it is running up towards redline sitting in traffic. It seems (although impossible to confirm in such a cramped compartment) to be leaking from the intake on the back of the engine between cyls 2 & 3.
I'd appreciate any insight or tips that you may have learned from your experience before I get in there and tear it down. Sound like about a 6 hour job for a home mechanic?
Thanks! Goat