dealer wants a grand to repair coolant leak thermostat housing and bypass hose my powertrain warranty states Coverage on the engine coolant system begins at the inlet to the water pump and ends with the thermostat housing and/or outlet that attaches to the return hose. I showed that to adviser and shop foreman who said they input the labor codes to replace and it came up as not a warrantied job they don't read warranty book second time there for same leak first time they couldn't find it and said to let tank go empty and bring it back if it did!!! my engine had already started overheating beeping noises and red light we pulled over and added coolant they think I'm stupid I guess WHat can I do? been through two service advisors 2 mechanics