<strong>Yahoo Message Number: 16678</strong>Any suggestions on tracking down a cooling system problem on the Detroit Series 40?<br/><br/>I've changed thermostats and had the system professionally flushed and refilled with new coolant yet I still run at 205/210 on the level and the temp begins climbing as soon as I hit the slightest grade (220- 225).<br/><br/>Is there a way to check the fan operation -...