Citroen PCV valve replacement
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Citroen PCV valve replacement
Citroen PCV Valve Replacement
PCV stands for positive crankcase ventilation. The PCV valve is part of the emissions control system on your Citroen and it is also a crankcase ventilation system. It allows the Citroen’s engine to ‘breathe’ and removes harmful oil vapours from being released into the atmosphere. The PCV valve regulates the pressure and vapour being released out of the crankcase and moves the vapour into the intake manifold where it blends with the air/fuel mixture and continues through the combustion process.
The valve is situated near or in the top of the Citroen’s rocker cover (valve cover). The PCV valve can get stuck open or clogged with sludge and should be inspected regularly and replaced when required. If the PCV valve is failing it can cause your Citroen’s engine to run rough and you may notice some exhaust smoke and oil leaks.
One end of the valve is larger than the other, making it almost impossible to fit the valve the wrong way round. Internally the PCV valve closes when your Citroen’s engine is off or when there is back pressure. It opens when the engine is idling (low flow) and accelerating (high flow) based on vacuum pressure.
If the PCV valve is left faulty, the extra gunk can foul your Citroen’s spark plugs and increase oil consumption. For such an inexpensive item, there really is no excuse for not getting the PCV valve replaced. New spark plugs and replacing burnt oil will cost you much more.
Citroen Models
- Citroen 2CV-4
- Citroen 2CV-6
- Citroen 3CV
- Citroen AX
- Citroen Berlingo
- Citroen BX
- Citroen C-Crosser
- Citroen C2
- Citroen C3 Aircross
- Citroen C3 I/First/Classic
- Citroen C3 II
- Citroen C3 III
- Citroen C3 Pluriel
- Citroen C4
- Citroen C4 Aircross
- Citroen C4 Cactus
- Citroen C4 II
- Citroen C4 Picasso/Grand Picasso
- Citroen C4 Picasso/Grand Picasso II
- Citroen C5
- Citroen C5 Aircross
- Citroen C5 II
- Citroen C5 III
- Citroen C5 X
- Citroen C6
- Citroen CX
- Citroen Dispatch/Jumpy III
- Citroen DS
- Citroen DS3/DS3 Cabrio
- Citroen DS4
- Citroen DS4 Crossback
- Citroen DS5
- Citroen Dyane-6
- Citroen GS
- Citroen ID
- Citroen Mehari
- Citroen SM
- Citroen Xantia
- Citroen XM
- Citroen Xsara
- Citroen Xsara II
- Citroen ZX