Recently my 90 degree coolant hoses that run into the lower manifold busted, and caused my car to overheat. I replaced the hoses, and added coolant. Now since this happened my cooling fans wont turn on to cool my engine. I replaced my temperature sensor this morning, and nothing has changed. My next move is to replace the relay. Both fans turn on when I run my a/c but wont turn on to cool the engine. Car temp is fine on highway but rises when driving around the city. Any suggestions? Thanks, Im new to this forum. Marc.