NHTSA Complaint #11649935 — 2021 CHRYSLER 300

Vehicle manufactured 12/2021. Purchased NEW 5/28/2022. Slight oil consumption between changes. Noticed engine had rough idle similar to misfire August 2024 shortly after an oil change@24,272 mi. NOTE Check Engine light did NOT appear. Car taken to dealership on 10/9/2024 with complaint of rough idle and diagnosed. Service Record states: diagnosed pending multi-cylinder misfire - valvetrain is slightly noisy - removed both valve covers to find Cylinders 1,4,5,6 have ROCKER ARMS WITH NEEDLE BEARING FAILURE (emphasis mine) - no cam damage-replaced all rockers on both sides-complete. Part# 5184296-AH: ARM VALVE (09043001), Qty 24 + 2 gaskets. Service report does NOT note if lifter or other parts were inspected. Repair conducted 10/15/2024@26,039 miles. Asked at pick up OIL WAS NOT CHANGED AFTER REPAIR - TOLD NOT NECESSARY. Returned for follow up testing for rough idle (same as before rocker arm repair) and requested oil change on 12/3/2024@27,279 mi to remove potential metal shavings. Service Report states: diagnosed and observed engine while idling - no roughness in idle - all mounts good. Requested inspected by FCA Factory Tech. Service advisor promised and after a follow up call refused to arrange for Factory Tech inspection. Taken to another dealership on 2/24/2025 at 29,215 miles. Was aware of previous repair. No diagnosis performed. Service report: found vehicle to operate as designed - no problem found. Refused to arrange Factory Tech inspection. Vehicle continues to have rough idle due to misfire and makes ticking noise on both sides which can be heard in cabin. Problem was not fixed properly or other parts need replacement. FCA refuses further inspection. No oil pressure, particulate or consumption testing conducted. No lifter inspection conducted. Oil sample sent for lab for testing (metal ppm). Customer Service would send to case manager. Filed NCDS case and discussions with attorney. Reduced performance. Engine will not last. FCA needs to buy back.