Chevrolet Impala 2014 — technical service bulletin
Bulletin N192289160 · NHTSA communication 10177367 · issued Jun 18, 2020
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2014
model years
2
vehicle entries
Official summary
Special Coverage - In certain 2014 model year Chevrolet Impala and Malibu vehicles equipped with a 2.5L engine, the rocker arm oil control valve, (OCV), may malfunction. If this occurs, the valve may fail to correctly control oil gallery pressure into the engine?s rocker arm system or leak small amounts of oil onto the exterior of the engine. The customer may notice the engine running rough. In addition, the Malfunction Indicator Lamp (Check Engine Light) may illuminate and a diagnostic trouble code related to the OCV may set. Dealers are to replace the rocker arm oil control valve. The 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.