What degree thermostat

robfather

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Friends. Why are there three different options for thermostats? There is a 170, there is a 180, and there is a 192 degree thermostat. Why the varying need for a different one if the engine is supposed to run at a consistent operating temperature? Does it depend on elevation?

Another question. At what temperature is the IACV supposed to run? I think I may have a cooler thermostat currently in it, and it's probably the reason for frequent P0505 codes.
 

nd4sped

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@robfather depending on the region you live in, having a lower temp thermostat can help keep engine temps down a few degrees. Not uncommon for folks to drop in a lower temp thermostat to open a lower temperature. Common in hot climates.
 


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