2017–2018 Subaru Impreza: Sudden loss of power (PCV valve recall)
Likely causes, ranked
- Separating PCV valve$0–$0Shop
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
As an Amazon Associate I earn from qualifying purchases.
These are search links; confirm fitment for your exact engine and trim. Affiliate disclosure
Symptom: A sudden loss of power, rough running or engine noise.
Likely causes
- Separating PCV valve. Subaru replaces the valve and the engine if needed.
DIY or shop?
Dealer. Recall repairs are free.
Useful steps
- Check your VIN for 19V744.
Vehicle focus: 2017–2018 Subaru Impreza.
Safety / mechanic note
A loss of power while driving can cause a crash. Verify with a mechanic or dealer.
Recalls & service bulletins
Recalls
- 19V744000 2017–2018 Impreza and 2018 Crosstrek with an aluminum PCV valve: it may come apart and its parts can enter the engine, possibly causing a loss of power. Dealers inspect and replace the valve, or the engine if the parts can't be found. Details
NHTSA complaints: 18 keyword-matched complaints for Subaru IMPREZA 2017–2018 (of 265 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-15).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.