Thanks a lot for the replies. I have it at the shop having them see whats wrong exactly because i dont have time today with my work. But i will backflush it and see how that works. But if i had the system flushed at a shop wouldnt that be the same thing as back flush? Because the coolant probably needs to be changed i can quite a bit of debris under the rad cap. And my old thermostat had a lot of debris on it. Thanks again guys.

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