Hello good night, I have problems when starting my Chevrolet Corsa diesel year 99, I turn the ignition and at the beginning towards a noise and in the other attempts only towards noise, like a hum under the glove compartment, I disarm and I meet the ecu and relays, and one in particular is melted, and shaken and had something loose, is like melted, and displaced contacts is this relay that influences the ignition? And also just below I found a thermostat similar to that of a refrigerator that I don't know what it is, I bought it recently, thank you very much everyone, if you can guide me