Looking if anyone has had a similar problem or if there are any bulletins.
2015 Silverado 1500/5.3L with 66k miles.
On acceleration I'm getting a noise that sounds like spark knock. It's not extremely loud but it's noticeable in the cabin. Does NOT make the noise revving the engine with the trans in neutral. Does it in all gears and increases with engine RPM. Does not get better or worse as the engine warms.
Anyone had a similar experience and if so what was the cause? Thanks for any help.