Dodge Challenger 2021–2022 — technical service bulletin
Bulletin 9004444 · NHTSA communication 10204301 · issued Nov 15, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
9
vehicle entries
Official summary
SPRING, Valve For conern of misfire or misfire related DTCs and diagnosis leads to a broken valve spring, please replace all valve springs and contact FCA Redacted Content to FasTrak all replaced parts to QEC for further analysis. If no response in 15 minutes, proceed with repair.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.