I took my Trax in because the heater was blowing cold air. Not overheating, just no heat. After waiting over two hours for the diagnostic, they told me I needed a new water pump. Is that possible? Then, after dismantling the car, the mechanic said I need a new radiator. Now my car is so disassembled that I do not have confidence he will know how to put it back together. What do I do? My warranty is expired. Help!!!