What are the symptoms and consequences of HEMI MDS lifter/camshaft failure in 2019-2023 Dodge Chargers with 5.7L or 6.4L V8?
The 5.7L and 6.4L HEMI V8 engines in 2019-2023 Charger R/T, Scat Pack, and SRT Hellcat can suffer MDS lifter and camshaft wear, causing audible ticking or knocking at cold start or idle. This may trigger the Check Engine Light, misfires, and rough idle, and if ignored can lead to collapsed lifters and camshaft lobe wear, eventually requiring valve train or engine replacement. Listen for persistent ticking on cold start and check for stored misfire codes such as P0300-P0308.