The term COVER ENGINE can be broken down into two crossword solutions: HOOD (4 letters) and POD (3 letters). The HOOD of an engine is the metal covering that is placed over the top of the engine to protect it from dirt, debris, and other environmental factors. The POD is a protective covering that is placed over the engine's exhaust system to reduce noise and emissions. Both the HOOD and the POD are essential components of an engine, as they help to keep the engine running smoothly and efficiently.