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All pictures and texts in this web page are the property of nomaallim.com. Any use of any part of those contents without the written consent of nomaallim.com shall be subject to legal procedures as per international and local laws in the concerned country. Using the name "nomaallim" or "nomaallim com" or "nomaallim.com" in the text describing the unauthorized copied content shall not constitute an exception and shall be sanctioned in accordance to the effective laws and proceedings.
BEFORE YOU START
DISCLAIMER:
Our pictorials are of informative nature and do illustrate works carried out by ourselves at our own premises for our own use and satisfaction. Readers who envisage to carry out similar works inspired by the below method shall do this at their own risks and liability. |
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NOTE: this tutorial is valid for the following Mitsubishi, Peugeot and Citroën models, all equipped with the same Mitsubishi MIVEC 4B11 engine:
- Mitsubishi Lancer
- Mitsubishi ASX (depending on model-year)
- Mitsubishi Outlander
- Mitsubishi Outlander Sport (depending on model-year)
- Peugeot 4007, 4008
- Citroën C-Crosser, C4 Aircross
What is the PCV valve and what are its symptoms
PCV stands for Positive Crankcase Ventilation.
The PCV valve is a one-way valve that redirects part of the engine oil vapors into the intake manifold.
While it is not present in all cars, and not found at all in most European cars, where it is often built-in the overhead cover, most Japanese and Korean automakers would rather fit it to the front side of the overhead cover, making its replacement quite easy as shown in the below tutorial.
Make sure to replace your PCV valve each 30,000Km as a preventive measure to avoid pressure build-up on top of engine if the valve ends up stuck closed; if stuck open, it could cause a rough idle.
The PCV valve is a one-way valve that redirects part of the engine oil vapors into the intake manifold.
While it is not present in all cars, and not found at all in most European cars, where it is often built-in the overhead cover, most Japanese and Korean automakers would rather fit it to the front side of the overhead cover, making its replacement quite easy as shown in the below tutorial.
Make sure to replace your PCV valve each 30,000Km as a preventive measure to avoid pressure build-up on top of engine if the valve ends up stuck closed; if stuck open, it could cause a rough idle.
How to replace the PCV valve, shown on a Mitsubishi 4B11 engine
Take off the rubber hose of the oil vapor and use a spanner or a socket to unscrew the PCV valve, which is always located to the front of the engine overhead cover.
Fit the new PCV valve and rotate it first by hand until full contact.
Tighten slightly without forcing, or, if you have torque wrench, tighten to 2-3 Nm.
Refit the oil vapor recirculation hose.
Tighten slightly without forcing, or, if you have torque wrench, tighten to 2-3 Nm.
Refit the oil vapor recirculation hose.
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