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DFM vs AFM: What’s the Difference in GM V8s?

DFM vs AFM: What’s the Difference in GM V8s?

AFM vs DFM is a question of evolution, not improvement — at least not for the engine. Active Fuel Management was GM's first attempt at cylinder deactivation, running 2005-2018 on...

DFM vs AFM: What’s the Difference in GM V8s?

AFM vs DFM is a question of evolution, not improvement — at least not for the engine. Active Fuel Management was GM's first attempt at cylinder deactivation, running 2005-2018 on...

How to Fix a Silverado Rough Idle (Step-by-Step)

How to Fix a Silverado Rough Idle (Step-by-Step)

Silverado rough idle has five common causes, but they don't have equal probabilities. For late-model 5.3L and 6.2L trucks, 52% of rough idle cases trace back to AFM/DFM cycling at...

How to Fix a Silverado Rough Idle (Step-by-Step)

Silverado rough idle has five common causes, but they don't have equal probabilities. For late-model 5.3L and 6.2L trucks, 52% of rough idle cases trace back to AFM/DFM cycling at...

Chevy AFM Lifter Replacement Cost: The True Price

Chevy AFM Lifter Replacement Cost: The True Price

Chevy AFM lifter cost is the kind of number most truck owners only research once they're already standing in a service bay watching their truck get raised on a hoist....

Chevy AFM Lifter Replacement Cost: The True Price

Chevy AFM lifter cost is the kind of number most truck owners only research once they're already standing in a service bay watching their truck get raised on a hoist....

5.3 Silverado: Tuner or Plug-In Module for AFM?

5.3 Silverado: Tuner or Plug-In Module for AFM?

Every truck forum thread about AFM disablers eventually gets derailed by the same five myths: "it voids your warranty," "it triggers a Check Engine Light," "it drains your battery," "it's...

5.3 Silverado: Tuner or Plug-In Module for AFM?

Every truck forum thread about AFM disablers eventually gets derailed by the same five myths: "it voids your warranty," "it triggers a Check Engine Light," "it drains your battery," "it's...

Chevy 5.3 Engine Ticking: Lifter Failure or Exhaust?

Chevy 5.3 Engine Ticking: Lifter Failure or Exh...

Chevy 5.3 engine ticking is the sound that splits owners into two camps: the lucky group with a $300 problem and the unlucky group with a $5,000 one. The lucky...

Chevy 5.3 Engine Ticking: Lifter Failure or Exh...

Chevy 5.3 engine ticking is the sound that splits owners into two camps: the lucky group with a $300 problem and the unlucky group with a $5,000 one. The lucky...

Top 7 Silverado 1500 Towing Upgrades for Heavy Loads

Top 7 Silverado 1500 Towing Upgrades for Heavy ...

Most Silverado towing upgrade lists start with the visible stuff: brake controllers, tow mirrors, transmission coolers, suspension bags. They miss the most important upgrade you can make for a tow...

Top 7 Silverado 1500 Towing Upgrades for Heavy ...

Most Silverado towing upgrade lists start with the visible stuff: brake controllers, tow mirrors, transmission coolers, suspension bags. They miss the most important upgrade you can make for a tow...