Temperature Sender Gage stuff - try and consolidate info here
Engine temp: cold, 54-deg F, IR measurement at base of sender mount
Engine not running
Voltage at gauge connect wire, unhooked: 12.5v (same as at fuse box)
Voltage “ “ “ “ , hooked up: starts at 6.15v, then starts to fluctuate after a bit between 6.2v and ~10v
Resistance at sender, unhooked: 38.7ohms
Temperature gauge reading: C
Engine temp: IR measurements ~150-deg F @ thermostat housing, ~165-deg @ base of temp sender housing
Engine idling but after driving it a fair bit
Voltage at gauge connect wire, unhooked: 14v (same as at fuse box)
Voltage “ “ “ “ , hooked up: fluctuates between ~10v and ~12v
Resistance at sender, unhooked: 38.9ohms
Temperature gauge reading: 1/4 mark
Data as of 5/1/2022
I think my running measurement may have been with the thermostat still closed or maybe the thermostat isn’t closing, stuck open.
