Powertrain
generic / SAE
P04FC
Crankcase Ventilation System Performance
A general performance fault of the crankcase ventilation system - PCV pressure or flow does not match the engine model. Possible causes are a clogged PCV valve, blocked separator, oil-filler cap with a damaged seal, or excessive blow-by from worn rings.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / FC
Possible causes
- PCV valve clogged or stuck high
- Oil separator clogged medium
- Excessive blow-by from worn piston rings low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–800 €
- Estimated time: 0.6–3 h
- Component: pcv valve
- Component: oil separator
- Component: oil filler cap
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012