What is the original temperature thermostat setting for a 1995 Chevy S10 with 4.3 4wheel drive with Z Vin Code?

Answer 1

Been there, done that, found out optionsI just replace the Thermostat in my 1995 S-10 Blazer with the same specs. When I went to get a new thermostat, I was told that Factory was 195 Degree F. But the GM Dealership said that non-standard thermostats that have been used are 165 Degrees and 185 Degrees. I had to replace mine because it was stuck open, which simply put means not heat in the winter and overheat in the summer. I replaced mine with a 195 Degree Thermostat, and it puts out a nice amount of heat now, and is running cooler when it is hot outside. The GM dealer said to try to have a cooler thermostat when you are in higher temperatures and/or when you are towing. My 195 Thermostat opens at about 170, but it appears that it only opens a little at that point, under load it will actually make it up to 195, then the temperature will drop. Please note, if you are towing or have a load that your transmission cooler is in the radiator on the drivers side, and if your transmission is heating up, your engine temp will not be reading correctly, it is possible for it to be up to 10 degrees higher from the heat from the transmission. So choose temperatures wisely.

195 is a standard thermostat. 4.3 Engine runs abt. 200 degrees