This category is dedicated to the GM 4.3L, 5.3L, and 6.2L EcoTec3 engines. Our content for the Ecotec3 includes articles like the Chevy 5.3 vs 6.2 EcoTec3 and how to delete/disable Active Fuel Management (AFM). Check out more awesome, helpful EcoTec guides below.
As the largest member of the EcoTec3 V8 family, the 6.2 liter L86 is one of the best modern V8 power plants for trucks and SUVs. Boasting an impressive 420 horsepower and 460 lb-ft of torque stock, the 6.2 EcoTec3 can tow up to 13,400 pounds and has a max payload of nearly 2,100 pounds….
Chevrolet first released the 5.3 EcoTec3 V8 engine in 2014. In the near-decade since then, it has stayed as one of their most popular power plants in the SIlverado lineup. Depending on the model and fuel used, it produces 355-380 horsepower and 383-416 lb-ft of torque. Yet, for those looking to get even more out…
From 2014–2021, Chevrolet’s beloved Silverado 1500 and its GMC Sierra 1500 counterpart used the 4.3 liter LV3 V6 engine. Depending on the fuel and application, it produced 285-297 horsepower and 305-330 lb-ft of torque, naturally aspirated. While that’s nothing to sneeze at, when compared with the much more powerful 5.3 EcoTec3 and 6.2 EcoTec3 V8…
If you’re looking at trucks and need to choose between the 5.3L and the 6.2L, the choice might not necessarily be cut and dry. After all, the best truck for you is equipped with an engine that can handle all you throw at it, so sometimes the most obvious choice isn’t always the best option….
When it comes to powering your Chevrolet pickup truck, deciding between the available engine options can be a challenge. It’s not so much about displacement, but more a question of capability and, like many things automotive, what all can go wrong (and how much it will cost you). To help you decide between the 3.0L…
The 4.3L EcoTec3 engine became the new base half-ton truck option after the retirement of the Vortec engines. As such, it was built to be able to tow a decent amount of weight and provide strong reliability. Unfortunately, GM missed the mark on a few things with this engine, leading to some common problems. The…
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 6.2L EcoTec engine was released in 2014 to power GM’s performance vehicles and as the highest tier engine option for Silverado and Sierra trucks. Powering some of the most expensive GM vehicles, reliability is a big factor. Unfortunately, the 6.2L EcoTec3 is prone to a number of common and serious problems such as lifter…
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…
