How to Delete or Disable Active Fuel Management (AFM)
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How to Delete or Disable Active Fuel Management (AFM)

AFM or active fuel management is a GM/Chevy technology meant to improve gas mileage. AFM works by deactivating half of the engines cylinders under certain circumstances to reduce fuel usage. It essentially turns your V8 engine into a V4 which saves fuel. GM claims fuel improvements ranging from 5%-15% depending on the engine. So why…

The 5 Most Common Chevy EcoTec3 5.3L Engine Problems
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The 5 Most Common Chevy EcoTec3 5.3L Engine Problems

The Vortec engine family was plagued by problems with oil consumption and AFM, leading to GM developing the new EcoTec3 engine family in 2014. However, the EcoTec3 engine family, including the 5.3L engine still suffer from AFM related problems. Additionally, the 5.3L engine specifically has common problems with carbon build-up, fuel injector failure, 4WD, fuel…