I have a 1989 Dodge Dynasty, and I'm having problems with my engine fan turning on. Right now, I have the fan hooked directlt to the battery, and am unpluging the boot directly from the fan. I have replaced the relay that is bolted into the thermostat, and that worked, for a few days. Now the fan wont turn on when it reaches temperature. Can someone please tell me what other components can be responsible for the fan to come on as it should? Thanks