I have a 2955 that overheated after being run for 10 minutes yesterday. I could see where there was coolant that had leaked so I let it cool down and removed the fill cap. Reservoir was about 3/4 of a gallon low, so I filled to the mark and started the tractor again with the heater blowing on high. Within 5 minutes at an idle the tractor was overheating again. No leaks anywhere other than coolant coming out of the overflow on the reservoir. I stopped in at the local JD dealer and visited with service. Their first comment was that it likely had a blown head gasket. I really haven't been experiencing any other symptoms of that so I investigated further. I drained the radiator and ran a flush through it. While doing the flush, (heater blowing on high) the temp gauge shows that it was heating up too high again, but I never had any hot air coming out of the heat vent. The top tube on the radiator was hot; bottom was not. It started running coolant out of the reservoir overflow again, but the coolant coming out was not even warm. Radiator fins are all clean on the outside.
Does anyone have any suggestions on what might be the problem?? Should I try replacing the thermostats first? Any help is greatly appreciated. I just purchased the family ranch in the past year and really don't have the funds readily available to do the head gasket, if that's the issue.