nickyyG

I own a 2018 Silverado with 85k on it. While driving I heard a sudden ticking sound coming from the motor. Occurs at idle and increases with rpms, doesn’t go away after truck is warm. Sounds like the drivers side. Oil pressure was 40 at idle, oil levels were correct and oil itself is still golden, no check engine light. I popped both pass and drivers valve covers to check for collapsed lifter, but all the rocker arms are functioning nicely with no slack when turned off. Wondering where I should look next?

Hi, I own a 18 Silverado 5.3 with 85k on it, last week while driving I started to hear a loud ticking happen suddenly from under the hood. It’s audible at idle and increases with rpms. Also experience loss of power between 3rd and 4th gear unless I put the pedal half way to the floor. I’ve heard of lifter tick so I pulled the valve cover off and all of the rocker arms are moving nicely with no slack when motor is off. Oil pressure reads 40 at idle. Oil is still gold and at correct levels. It also doesn’t feel like there’s a misfire when it’s driven, in fact it feels 100% up until that wonky 3rd-4th gear range. No rpm flutter or surging. Wondering where to look next? I don’t want the dealership to empty my pockets in labor costs.