The combination of the engine, transmission, driveshaft, differential and axles that deliver power to the wheels. The term covers all main drive component5s of your vehicle.

Powertrain components all bolt together to from the assembly that moves the vehicle.

The term PCM- powertrain control module is named as such because it controls the engine transmission, not just the engine. A computer that controls just the engine is called the ECM- engine control module.

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