I have a 1998 Freightliner Thomas with a Cat 3126, and she's overheating on hills. Granted, I haven't driven her since the summer, but I'm heading out west soon. The fluid seemed to be relatively clean, the belts are all moving...
that's about the extent of my engine knowledge.
I'm looking for a good diesel mechanic near Boston that can look at her this week. I called Steve's in NH, but he's booked for a couple weeks and we want to get out of here sooner than that. Any help would be appreciated.