As 'ericlb' has said, you need to verify that the engine is actually overheating it's possible that you have a hyper-active temperature sender or dash gauge.
Since this vehicle is computer controlled, and if you can get your hands on a data scanner, it's really quite simple to diagnosis a possible dash gauge malfunction by comparing the 'ECM' coolant temp sensor value with the dash gauge value...
If a Scanner isn't available, another method would be to use a laser pyrometer aimed on the thermostat housing during the early run time temp fluctuation.
Also, look for a steady stream of air bubbles in the radiator (head gasket) & check to see if the coolant flows with force & doesn't dribble, I've seen some slipping & rotted water pump impellers that have caused similar problems.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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