Thanks everyone. You know, on a Friday, when you have to take your car in it just helps to have a support group. Alas, it was the MAS. Enrique checked the box for warpage, Dr. Diesel, and he said it is fine.

The part should be about $200 and I don't know about the labor yet, but I will post the bill when I get it. I have sent him a lot of business, so he is pretty kind to me on labor (ie 'throws in' fuel filter changes for parts cost only when I have my oil changed)

Thanks again.