i put new thermastat in the car changed all the senors put new ircm init burbed it real well there is no air pockets ....tested the high speed fan by unplugging the cooling temp senors and the hight speed comes on ....i turn air conditioning on and the ac doesnt work and low fan doesnt come on ...is the fan just bad ? willl high sppeed not comes on unless low speed comes on first ? i checked all the other threads and it doesnt really help what im figureing out ...