Thanks to all, I do appreciate your help.

To ZackeryMack: I did PM you yesterday to get a copy of that scan. You must be like me and don't notice that little envelope flashing. I once had a message that was 2 weeks old before I noticed the envelope <img src="/forums/images/graemlins/lol.gif" alt="" />.

To kravdraa: Thanks for the offer to machine me a new one! If I didn't have the credit (mentioned below)I would probably take you up on it.

It seems the consensus is the oil cooler valve/regulator. Since a replacement base and valve is only $38, and I have a credit at St. Charles that is several months old, I just went and ordered it from them. My second oil change is due shortly and I will also make use of an Isuzu/OEM filter at that time too, just to eliminate the possibility of a missing check valve in the econo-parts store filters.

Thanks again!

NCDiesel