We got the other fan working. A few good wacks and some trash fell out and it started working. After we got it working we drove it for about 10 minutes and it started overheating again. Another mechanic I work with said is could be the fan clutch and that the fan is a little slow. This is really the only thing that I can think of unless I didn't get a good enough look at the fins in the water pump. This is driving us crazy...What else could be happening to cause the overheating?