Got a new thermostat, so the engine is running warmer now - around 160 - 180 degrees, which is odd because it was a 195 degree thermostat.
Anyway, the car is a 95 Cutlass, 3.4 L with the electronic climate control. When I set the temperature for the warmest setting, the air coming out of the heater is unheated. It only gets slightly warm if the car sits and idles up to around 200 degrees.
Has anyone dealt with symptoms like this before? My guess would be a clogged heater core because it does put out a litte heat, but only when the car gets around the 200 degree mark.
I'm going to look at the actuators that control the temperature doors for the heater core tomorrow. I just want to see if they are moving, at all, and if they are in the right position. On the other hand I can't see it being the heater core doors, because how would that explain the slight amount of heat when the engine gets around the 200 degree mark? If the doors are stuck closed, no heat should get through. .
If this sounds like something you've come across, please let me know what you did to fix it.
Thanks in advance for any ideas on this.