Does 2008 6.2 have AFM?

Does 2008 6.2 have AFM?

The 4.8 and 6.2, do not have AFM.

Is the Active Fuel Management on a 2007 Avalanche?

I have a 2007 Avalanche that I purchased new. It now has 209,000 miles on it. I’m sure that some of you know that the Active Fuel Management can be a real problem on these engines. I’m a dedicated oil changer on my engines and I never had a problem until the truck reached 200,000 miles.

What does Active Fuel Management ( AFM ) do?

Active Fuel Management (AFM), otherwise known as Cylinder Deactivation is a General Motors engine technology that shuts down half of the engine’s cylinders in light driving conditions to improve fuel economy.

How to disable Active Fuel Management on GM engine?

Should you delete Active Fuel Management on GM engine? There are two ways to disable active fuel management on a GM vehicle, but first you have to determine whether your engine is a candidate for the delete or disable procedure.

How does Active Fuel Management affect fuel efficiency?

This reduces engine efficiency, which means less than optimal fuel economy. Active Fuel Management saves fuel by using only half of the engine’s cylinders during some driving situations – such as highway cruising — and then seamlessly reactivates the other cylinders when a driver demands more power for acceleration, climbing a grade or hauling.

I have a 2007 Avalanche that I purchased new. It now has 209,000 miles on it. I’m sure that some of you know that the Active Fuel Management can be a real problem on these engines. I’m a dedicated oil changer on my engines and I never had a problem until the truck reached 200,000 miles.

Active Fuel Management (AFM), otherwise known as Cylinder Deactivation is a General Motors engine technology that shuts down half of the engine’s cylinders in light driving conditions to improve fuel economy.

Should you delete Active Fuel Management on GM engine? There are two ways to disable active fuel management on a GM vehicle, but first you have to determine whether your engine is a candidate for the delete or disable procedure.

Is there a problem with GMC Sierra Active Fuel Management?

There is a problem with the active fuel management systems on ALL 2007-2008 Sierras that have the 5.3L or 6.0. The 4.8L model does not have active fuel management. For the old timers out there, it is the same issue as the Cadillac V8-6-4 engine. Make no mistake, If your vehicle has active fuel management, you have a problem!