Sounds logical - I can see that...

But, I very rarely run the blower past 2 - haven't had any reason to and the noise from the fan at the higher speeds annoys me...

Whether the blower is on 1 or 2, the effect is the same...

I had also considered that it may be because of the outdoor temp - that maybe the engine was containing all the heat and the cold outdoor temp was keeping the heat from being transferred to the coolant... No clue... It's been getting down in the negative temps at night and it doesn't seem to want to get past the freezing point during the day - it's supposed to be like that for at least a week... Brrrr...

The heat issue really isn't that big of a deal for me as it does warm up nicely once it gets going down the road - I'm more concerned about the engine running at the correct temperature...

I'm attempting to contact the security company in Montana that owned this truck prior to see if I can get any idea of the maintenance history...

Thanks for the help guys!