Vacuum EGR valve testing (2002-2003)
- My Name: Citroen-Driver
- Posts: 267
- Joined: Mon Dec 18, 2017 12:10 am
- Model: C3 Pluriel - with or without roof
- Year: 2003 (53)
- Engine Size: 1.6 (16v)
- Fuel Type: Petrol
- Mileage: 90000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Has thanked: 51 times
- Been thanked: 40 times
The early Citroen C3 (2002-2003, L4 level engine) has a vacuum controlled EGR valve.
The test for this is to remove it from the car and attach a hand held vacuum tester like this.
Observe the valve open with vacuum applied, the valve should hold in the open position and stay open until the vacuum is released.
If the valve won't open with vacuum then it may be stuck and need cleaning. Clean and test again.
If the valve won't stay open under vacuum it is faulty and needs a replacement.
If the valve won't close after it opens and vacuum is released then it may be dirty, clean it and test again.
If testing fails after cleaning, replace the EGR valve, part number 1628.XV
If the factory clip was removed to release the EGR valve from the EGR pipe, fit a replacement EGR clip, part number is 1628.3J (here) 'Tube Collar'.
- My Name: Citroen-Driver
- Posts: 267
- Joined: Mon Dec 18, 2017 12:10 am
- Model: C3 Pluriel - with or without roof
- Year: 2003 (53)
- Engine Size: 1.6 (16v)
- Fuel Type: Petrol
- Mileage: 90000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Has thanked: 51 times
- Been thanked: 40 times
Later L5 engines (from September 30th 2003 and on models) have an electronic EGR valve and these are tested differently.
You can identify the later EGR valve by a lack of vacuum pipe and the addition of an electrical connector.
You can identify the later EGR valve by a lack of vacuum pipe and the addition of an electrical connector.
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