Honda Accord 2014–2017 — technical service bulletin
Bulletin A19-019 · NHTSA communication 10153879 · issued Feb 21, 2019
Technical service bulletin
communication type
Engine
component
2014–2017
model years
7
vehicle entries
Official summary
Service Bulletin - There is a knocking or clicking from the engine during cold startup. The check valve in the cam chain tensioner is worn, allowing oil pressure to leak internally and the cam chain to lose tension after engine is turned off.
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.