Some new GM trucks will pollute more thanks to microchip shortage

General Motors has decided to make some 2021 full-size pickups without a certain fuel management module because of the ongoing microchip shortage. As a result, those trucks will get around one fewer mile per gallon of gas, meaning they’ll burn more fuel to go the same distance, releasing more carbon emissions into the atmosphere.

The trucks affected are models that use GM’s 5.3-liter EcoTec3 V8 engine (including versions with six-speed or eight-speed automatic transmissions), according to Reuters, which first reported the decision. That includes the popular Chevy Silverado and GMC’s Sierra.

The module is what powers the trademarked “Active Fuel Management” or “Dynamic Fuel Management” systems GM promotes on these trucks, which...

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