Which silverados have afm

V4 mode is for cruising at constant speed. When you hit the throttle, it immediately fires on all 8. I think the only thing that might bother me is if I did a custom exhaust and heard the drone. But if you just replace the muffler that is not a problem. I intend to put a flowmaster in there soon. It is easy to find negative reviews on the internet regarding most items and services. I've had AFM since '09 and would not hesitate to buy again.

The efficiency of these GM engines are incredible and will only get better. As they say, your mileage may vary. I for one will not ever buy another vehicle with cylinder deactivation of any kind. I'd buy a year-old vehicle without it before I'd buy a brand new one with it.

I was leery of AFM when I bought my truck, and it has been an oil guzzling, plug-fouling nightmare. They keep saying that each new generation has all the bugs worked out. But then you read posts on here saying that folks are still having trouble. If someone gave me a new truck with AFM, I'd turn off AFM and install a catch can before the thing had 50 miles on it, only use Dexos-rated oil, and check the oil at every fueling stop!

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Sign in with Facebook. Sign in with Twitter. Sign in with Google. Looking to buy first Silverado and afm is making it hard afm silverado silverado active fuel management.

Reply to this topic Start new topic. Recommended Posts. Mariachi09 1 Posted July 11, Posted July 11, Thanks guys!

Link to post Share on other sites. Replies 69 Created 3 yr Last Reply 3 yr. Top Posters In This Topic 8 7 5 5. Popular Posts Hate Work July 12, Grumpy Bear July 11, Mountain motor July 12, Nasty 1, Posted July 11, The 6.

Foghorn19 Posted July 11, Posted July 11, edited. As stated AFM can be disabled with something like the Range plug in unit. Range AFM disabler Or better yet you can wait for the 19's and their dynamic fuel management.

Edited July 11, by Foghorn Jchoi Posted July 11, Boardmember Posted July 11, Ozer Posted July 11, Turbo 2 Posted July 11, I currently have my 2nd truck with AFM. I have had zero problems. Donstar 2, Posted July 11, Crstfr Posted July 11, MaverickZ71 Posted July 11, Supreme Pizza Posted July 11, Join the conversation You can post now and register later.

Reply to this topic Insert image from URL. Followers 0. Go to topic listing. Similar Content. Does anyone have a set of Ltz Led taillights for sale with the 3' harness? I am looking to swap them onto my chevy silverado Any help is appreciated in locating a set. We have a Yukon 6. Other dealers reportedly said they considered a quart loss every 2, miles standard. Silverado owners became upset because they disagreed with those statements.

Another interesting fact is that these drivers were seeing the issues at 60, miles or fewer on their expensive pickups. Foster doesn't just ride into the setting sun, he stops and enjoys it. Chevy Silverado. A post shared by chevrolet chevrolet on May 16, at am PDT.

The culprit for the excessive oil consumption issue lies with a defect in the 5. The company implemented it to increase fuel economy , get better horsepower, and more torque.

However, it appears that the AFM causes the oil to get past the pistons, so it enters the combustion chamber. There, it will get burned out, or it will harden and accumulate in the cylinders. If not handled quickly, the pistons or cylinders could get damaged.

Some Silverado owners have had their engines rebuilt or replaced to fix the problem. Others reported overhauling their engines, replacing worn parts, including the AFM active valve lifters.

They had the AFM feature turned off for their engine. They documented no more complaints. A few service bulletins have since surfaced that explain how maintenance should deal with the issue. The instructions are to install a deflector over the valve and perform a cleaning of the top engine components.