Hello, this is what happened. I was idling in my 06wrx for about ten minutes after a 15min drive from work then the cel came on along with the blinking cruise lite.i did notice the the temp was at the 3/4 mark. I went to get the readings check and the code was p0483 which stands for cooling fan rationality check. After that i did check if the fan turned on and it did when it was 1/2 way at temp but it also stayed on while the temp climbed up to 3/4 mark. A couple of things that i was told that would of caused the cel 1.air in the system 2. Bad tstat 3. Bad sensor. Im guessing these parts wouldnt cost much but really dont wanna spend the money to do it all if i can avoid it. Has anybody ran into this same problem and then fixed it? All help is appreciated, thanks! Btw i am rolling around with a rejection sticker now
I have had this happen. There was an issue with the boost solinoid, seemed to be related to a quick change in temperatures. We had 70 degree weather and it dropped to upper 30's overnight. The car seemed to take some time to adjust to this.