Reads hot, engine shut down?
Thanks
also check your overflow tank for cracks & leaks, pull the battery and the coolant recovery tank comes right out after a couple bolts, clean it out and make sure hose from it to radiator neck is good.
Thanks
Bunch of things could be wrong. Your radiator cap can be going bad and coolant is slowly leaking out now. You could have a bad temp sensor and everything else is perfectly fine. You could have a very slow leak at the water pump and its sucking in air each time the engine cools. If your t-stat was stuck "fully" closed you would peg the needle into the red quickly.
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