QUESTIONI'm in the process of transplanting an L77 from a 2012 Caprice 9C1 PPV [police pursuit vehicle] along with its 6L80E [six-speed, longitudinally mounted electronic automatic overdrive ...

A common issue with the 5.3 engine is AFM lifter failure. In this video, we diagnose the problem and replace the failed AFM lifter and pushrod to get the engine running properly again. Follow along ...

A federal judge has handed General Motors a key procedural victory in the long-running GM lifter lawsuit, denying a late-stage effort by plaintiffs to split the case into two separate legal battles.

We discovered that number 4 lifter on the AFM has collapsed. I have had the heads cleaned resurfaced and tested. No problems. I have ordered a AFM delete cam kit and a programmer. AFM is going away… ...

AFM is Active Fuel Management which used a solenoid to deactivate the lifters on select cylinders of the engine. Yours has standard lifters so no AFM. Get our GM news straight to your inbox. We'll ...

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 ...

The L99 is a 400-horsepower engine while its fraternal twin--LS3--is rated at 422 hp. The difference lies in the valvetrain; as the short-block, heads, and intake manifold are identical. One small ...

OK, so you checked off the option box for the 6L80E automatic when ordering up your new fifth-gen. Unlike your buddies in the local Camaro club that insist on shifting manually, after an evening of ...

You can pick your nose, but you can't pick the engine for your fifth-gen Camaro SS--those who opt for the automatic transmission get an L99 under the hood while a manual transmission-equipped ride ...