I recently changed out my thermostat to stop my overheating problem. Car was running fine (minus the little sputtering while driving time to time.) when it suddenly boggled down rpm and stalled out on me. Now it's not even turning over, like the starter just died. But how will that cause my Spyder-Mobile to stall out mid drive? Now when I turn the key, I get power just engine rotation or even a sound that she wants to crank. My engine isn't ceased is it???