Introduction
This service manual addresses a safety recall for certain 2019 model year Ascent, Forester, and Crosstrek Hybrid vehicles due to a defective Positive Crankcase Ventilation (PCV) valve.
Affected Vehicles
A total of 51,613 U.S. vehicles are affected, including:
- 2019 Ascent (February 22, 2018 – August 31, 2018)
- 2019 Forester (July 4, 2018 – March 21, 2019)
- 2019 Crosstrek Hybrid (September 11, 2018 – October 8, 2018)
Service Procedure
The PCV valve may separate and allow engine oil to enter the combustion chamber, resulting in a visible change in appearance and/or the amount of tailpipe exhaust. If driving under this condition continues, separated components from the PCV valve may enter the engine, increasing the risk of a crash.
The service procedure involves inspecting and replacing the PCV valve, and potentially removing the engine and oil pan to collect broken components.
Manual:
Download: 2019 Subaru Ascent, Forester, and Crosstrek Hybrid Service Manual: PCV Valve Design Change
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