More info on the Dealer’s repair pursuant to SB N212353840 which states all 16 lifters must be replaced. After connecting with the Dealer’s General Manager (GM), the Service Manager went back to the ...

Q. My 2008 Chevrolet Suburban with a 5.3 liter V-8 engine has been diagnosed with faulty valve-lifters and camshaft. The engine uses GM’s AFM (active fuel management) system. The repair was quoted at ...

General Motors's Active Fuel Management (AFM) technology utilizes hydraulic valves, solenoids, and advanced software to shut down half of the cylinders in a V8 or V6 engine to save fuel. The system ...

Silverado debates start under the hood. For one 2020 owner, a 2026 2.7L TurboMax test drive posed a dilemma: Is four-cylinder ...

Is the V8 lifter nightmare finally over? One 2026 Chevy Silverado owner dug into his VIN data and found the news every truck ...

Here is where my Sub lifter repairs stand now: The dealer GM and SM met with GM representatives. GM authorized warranty repair to replace all 16 lifters. This is the second replacement of all lifters.