Citroen Exhaust pressure control valve replacement
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Citroen Exhaust pressure control valve replacement
Does My Citroen Exhaust Pressure Control Valve Need to Be Replaced?
The exhaust pressure control valve is part of your Citroen's EGR system, The EGR or exhaust gas recirculation system is part of the emission control system which is designed to recirculate the exhaust gases back into the engine when the correct conditions are met, this reduces cylinder temperatures and in turn, improves emissions.
This is where the exhaust pressure control valve comes in, its primary purpose is to detect the changes in the pressure of the exhaust and control the flow through the EGR system. They are commonly found on vehicles equipped with turbo-diesel engines, however, they can also be found on the EGR system of petrol engines as well.
When the exhaust pressure control valve fails or has an issue, it can cause problems with the operation of the EGR system, and even affect the engine performance. Usually, a problem with the exhaust pressure control valve will produce a few symptoms that can alert the driver of a potential issue.
The most common signs that your exhaust pressure control valve is failing are:-
1. Check Engine Light comes on
Generally one of the first symptoms is the check engine light, if your PCM detects an issue in the EGR circuit with the signal or the position of the flap it will cause the light to come on.
2. Decrease in power
If for some reason the engine light doesn't alert you to the issue you may start to notice a decrease in power, a lack of acceleration or a decrease in fuel economy
3. Excessive smoke or soot from the Citroen's exhaust
With the valve stuck in the wrong position, it can cause an excessive amount of soot or smoke to come from the exhaust
Exhaust pressure valves play an important role in the operation of the EGR system and can affect engine performance and emissions when they have an issue. If you suspect that your Citroen's exhaust pressure valve may be having an issue, have the Citroen inspected by your local technician
In some cases it is possible to repair the exhaust pressure control valve, sometimes the valve gets stuck open/closed from the soot in the exhaust and it can just be a matter of cleaning the valve, in other cases the valve will need to be replaced.
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/II/First/Classic
- Citroen C3 III
- Citroen C3 IV
- 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 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