It is REALLY cold in the winter. I could run it for 20 minutes and it would not warm up. Of course it was 2 degrees out…
However, the heat blows HOT when the gauge comes up to normal. Hot enough to make your hand uncomfortable like my Altima. It heats up way faster in warm weather. Still not as fast as normal. This is my second Pathfinder. Last one was in AZ, this one in PA.
Also, in addition to my wacky finger in the radiator test, when you start it cold and rev the motor you can see coolant flowing.
So, I’m 75% sure I know what is going on…but WHY is it happening. I can’t just keep changing the thermostat. It is REALLY hard to get the bolts in!