[XJman]

Have you checked your oil to make sure there isn't a head gasket leak? It may not cause it but overheating will cause warped heads and blown gaskets.

I would install a factory thermostat. I've not had luck with aftermarket units. Also maybe check the temperature sensor. There is a company that sells an in line piece you can put somewhere near the thermostat and verify the temperature is correct.

Is your heat working properly?

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[XJman]

Yes ive checked the oil, no different than before. It was remachined about 6k miles ago. Heat still works great, its a brand new thermostat ill try another one this week. Thanks!

Are you burping at the radiator or the reservoir near the turbo?

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[XJman]

started with both opened and ended doing the radiator

Try ending on the upper one if possible. I had to, to get mine right. Listen under the dash to see if you hear a gurgling sound. It's a good indicator if you got it. If not gurgle I wouldn't reburp.

At temp and idle do you have pressure in the sending and return hoses?

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