Coolant temp low

[SnowDrifter]

Mine is between 208 and 214 depending on speed and load on my 05. Temps measured via scan tool

 

[swathdiver]

What is actual operating temp for a 03 Tahoe

The needle sits at 210 on purpose, so as not to alarm the drivers and have them all rushing in to the dealer when they're new. I just had a thought, with all the computer programming these days, they should let it read actual temps the day after the warranty expires! LOL

Anyhow, the thermostat is 187 and they usually run within 10-15 degrees of that in a healthy system.

What brand water pump and thermostat did you use as replacements?

 

[Bwhntr6]

Another new thermostat and temp sensor fixed temp problem.heater controls in cabin were bad great heat now .thanks everybody for the input