One problem related to crankcase (pcv) has been reported for the 2019 Buick Encore. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Buick Encore based on all problems reported for the 2019 Encore.
My check engine light has been appearing off and on for a few months. I received a diagnostic code of p0325 twice by two different professional technicians. I ordered an oem knock sensor, hired a technician to replace the knock sensor, drove about 10 miles and the check engine light came back on. Then, I received a diagnostic code of p-1101, and the recommended solution is to replace the intake manifold and all necessary gadgets. After speaking with professional technicians and doing thorough online research, I discovered that general motors issued a service bulletin no. 19-na-101, dated July 2024, covers certain 2013–2019 model vehicles (including Buick Encore with 1. 4l turbo) for oil consumption and/or leaks caused by a missing non-return valve in the intake manifold. The bulletin acknowledges that the intake manifold design on these 1. 4l turbo engines has a non-return (check) valve or pcv system component inside the manifold that can fail or go missing, leading to issues like boost/vacuum leaks, oil consumption, engine performance faults. •the pcv valve is non-serviceable (you can’t replace it separately), meaning the only fix is replacing the manifold — which gm calls out in the bulletin. If gm or Buick hasn't issued a recall they should offer goodwill assistance especially since this is a defect on their end.