jimgoedde

Thanks for the inputs. I'll order another sensor and let you know the outcome. Jim

I'm sorry I should have supplied more information on my original post. I have taken the m/h on two subsequent trips. I topped off the coolant twice and the level now seems stable. I'm sure the warning light signal comes from the ECM (engine control module). But does the ECM, and the two temperature gauges all get there input signal from the same sending unit (mounted at the thermostat housing) which I replaced at the same time as the coolant? Thanks for the previous notes and for any additional information.

I have a 97 Safari Sahara with a Cat 3126 engine. After changing the coolant and temp sending unit I get a red light only after the engine temp comes up to about 178 degrees. The gage reads normal and my Silverleaf computer program reads 178-182. Any ideas on why the light comes on at a normal temperature would be appreciated. Thanks Jim