I am not posting this to argue, be mocked or ridiculed.
Last week I took a old friends Dodge Ram out after doing some brake work on it. This is the same 2019 Ram with under 100k on it equipped with the 5.7l that has the odometer that runs backwards.
I drove normally as always but could not resist the urge to “open it up” and I floored it and ran it to redline from 0 to about 70mph ONE time. It started missing and flashing the check engine light.
The engine started hammering! Not missing driving normally just making a rhythmic collapsed lifter like noise. Unless you gave it over 2/3 throttle it ran perfectly smooth. No continual check engine light.
The news is in today, a broken roller! I know these are prone to lifter failures but the roller usually locks up, this appears it broke into pieces.
Poor metallurgy? Lifter got stuck? Another victim of cylinder deactivation?
Anyone else see this before? Mechanic is at a loss. The plastic lifter tray is not broken. Vehicle has had oil changed according to the oil life monitor and I recommended oil used. I believe 5w20.
What a pickle!
