The P0118 code means that the engine control module (ECM) has detected a voltage signal that’s too high from the engine coolant temperature (ECT) sensor (below). In practical terms, the ECM believes ...

GM is recalling a long list of models due to an issue with the fuel pump power control module that can interrupt the fuel flow to the engine. Many are GMC models, including the GMC Acadia, GMC Savana, ...