GM 5.3L EcoTec3 L83 Engine: Specs, Problems, Reliability. The GM 5.3 L EcoTec3 is a 5.3-liter V8 naturally-aspirated engine with a direct fuel injection system. The debuted in 2014, the [ Read More.]
GM 5.3L EcoTec3 L83 Engine: Specs, Problems, Reliability. The GM 5.3 L EcoTec3 is a 5.3-liter V8 naturally-aspirated engine with a direct fuel injection system. The debuted in 2014, the [ Read More.]