Well... I have now been into the thermostat housing four times to try to see if I can find a leak, or switch the stat to something that works right. Today I put in the new Motorad 319-180, and it did not make for any change. After driving for about 20 minutes at 45-60mph, it was still only at about 160 degrees. It climbed to break that 180 degree mark when I went up hill for over a mile at over 60 mph. Once I got to my own hill, I climbed 800 feet for a mile at 20 mph, this brought the temp up to 180 again, as it had quickly fallen back to 170 when I got off the freeway.
While the truck was idling, and showing 180 on the gauge, I took the following video:https://flic.kr/p/PpeYsM
(You can also hear my wonderful bell ringing that I'm totally ignoring. Totally.)
While the truck was idling, and showing 180 on the gauge, I took the following video:https://flic.kr/p/PpeYsM
(You can also hear my wonderful bell ringing that I'm totally ignoring. Totally.)