If memory serves me right, some of those trucks had lifter issues. Sludge oil would make them stick and tick.

If memory serves me right, some of those trucks had lifter issues. Sludge oil would make them stick and tick.

I thought they were OK till 2008 that the 99-07 vortex motors lacked AFM active fuel management , those are the collapsing lifters that never get enough oil the local shop does AFM deletes reprograming them and replacing all the lifters after they do that they get a lot more life out of them.

as I understand the 4.8 never had AFM and a lot of the cargo vans also never tried to run AFM it was something they did on trucks and SUV to make milage standards.


that said , any of them with long oil change intervals or too thick of oil could have issues , those all needed 5w30 for more flow and I know a lot of people would run 10w30 or 10w40

Exhaust leaks can make a ticking noise. They can also come and go as components heat up and cool down.

I put one of these on my 2015 to stop it from dropping cylinders and save my lifters. Just plugs into the port under the steering wheel where you would pull codes for maintenance.
Boost