My temp light came on last night on my 09 xtx ,it was about 10 degrees out and it also had a bit of a miss out of the hole , the trails were super hard pack and i do not have scratchers, i did not let it idle long either, coolant lvl is fine, would scratchers solve this problem or should i bring it to my dealer, also just installed a skinz super Q silencer not sure if that would matter, any help wouldbe great!