06/18/2026
If you own a Chevy with a 5.3L or 6.2L and you're hearing that ticking noise…
Don’t rush into a big repair bill just yet. That ticking is almost always caused by the AFM (Active Fuel Management) lifters failing — a very common and well-known issue on these engines. Many shops will quote you thousands of dollars to replace lifters, cam, etc., but it often doesn’t solve the root problem long-term.
Get a second opinion first.
There are much better options than just throwing more money at the same AFM system that caused the failure in the first place.
Chevy now offers affordable crate engines with a 3-year / 100,000-mile warranty. These are a strong choice for many owners and can end up saving you money and headaches compared to repeated repairs.
I’m tired of seeing good people get worked over on these jobs. If your truck is ticking, feel free to reach out — happy to give you honest options (delete, repair, or new engine) so you can make the best decision for your situation.
Nelson Performance
Kurt Nelson