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Exhaust gas recirculation valve: useful information

How to detect a faulty EGR valve

Checking the exhaust gas recirculation system valve serviceability is too difficult: diagnostics of the exhaust system is not only time consuming, it also requires the use of professional equipment. Therefore, it is better to entrust the inspection to specialists at a service station.

In old cars, where no backpressure is created in the exhaust system, the inspection involves removing the valve. The vacuum of 250 mm Hg is applied with a vacuum pump connected to it. If the component is serviceable, its rod will be retracted opening the locking mechanism, and the vacuum will remain at the set level for not less than 30 seconds. Otherwise, the component is to be replaced.

In modern vehicles with backpressure in the catalyst, performing the diagnostics as described above is impractical. In such cases, during the check, follow the recommendations of the manufacturer of the vehicle.

You can notice that the EGR system valve needs diagnostics by the following symptoms:

  • at low revs and at idle speed, the engine operates unstably;
  • the onboard computer indicates an error;
  • fuel consumption increased;
  • reduced engine power.

The reasons of the EGR valve malfunction

The most common reason of EGR valve malfunction is the use of substandard fuel. The components contained in it enhance formation of soot deposits, which eventually results in jamming of the valve, and have a negative effect on metal components of the engine and related systems.

Fuel injectors fouling, deterioration of pump performance, and loss of tightness of the intake system impair the process of the air-fuel mixture preparation. Its leaning may result in an increased exhaust gas temperature, which leads to burning-out of the valve. This fault may also be caused by malfunctions of the ignition, timing or injection systems, when the fuel burns in the exhaust tract.

A common fault of the EGR valve is rupture of the membrane. It may occur due to accumulation of fouling on the surface of the diaphragm, poor quality of the component, or incorrect maintenance of the valve, such as using aggressive detergents for cleaning it.

Repairing and replacing the EGR valve

Repairing of the component is limited to cleaning. To remove dirt and soot deposits, first tap the body of the valve with a soft faced hammer, then shake out or blow out the crumbled deposits from the inside. The outlet hole can be carefully cleaned with a small screwdriver. Remember to never flush the valve with solvents.

To replace a faulty valve, follow these steps:

  1. Dismantle the plenum chamber of the intake pipeline.
  2. Disconnect the vacuum hose from the valve.
  3. Unscrew the bolts that fasten the component to the elements of the intake system.
  4. Remove the valve and replace it with a new one.
  5. Install all components in the reverse order.

EGR Valve: High quality bestseller

RIDEX 1145E0012 replacement Parts Details
  • Valve type: Solenoid Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Number of Poles: 5
  • Rated Voltage [V]: 12
  • Condition: New
In stock
Details
-25%
EGR Valve 1145E0012 - £ 45,72 EGR Valve RIDEX 1145E0012
Article №: 1145E0012
£ 45,72
£ 60,96**
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WAHLER 7625D replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Condition: New
In stock
Details
-25%
Exhaust gas recirculation valve 7625D - £ 271,86 EGR Valve WAHLER 7625D
Article №: 7625D
£ 271,86
£ 362,48**
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PIERBURG 7.02209.11.0 replacement Parts Details
  • Valve type: Control Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Technical Information Number: SI 0100
  • Condition: New
In stock
Details
-25%
Egr module 7.02209.11.0 - £ 161,43 EGR Valve PIERBURG 7.02209.11.0
Article №: 7.02209.11.0
£ 161,43
£ 215,24**
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PIERBURG 7.03784.34.0 replacement Parts Details
  • Valve type: Control Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Technical Information Number: SI 0100
  • Condition: New
In stock
Details
-25%
Valve egr exhaust control 7.03784.34.0 - £ 133,86 EGR Valve PIERBURG 7.03784.34.0
Article №: 7.03784.34.0
£ 133,86
£ 178,48**
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DELPHI EG10003-12B1 replacement Parts Details
  • Number of Poles: 5
  • Supplementary Article/Supplementary Info: with gaskets/seals
  • Voltage [V]: 12
  • Trim Level: Linear
  • Condition: New
In stock
Details
-25%
EGR Valve EG10003-12B1 - £ 77,79 EGR Valve DELPHI EG10003-12B1
Article №: EG10003-12B1
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£ 103,72**
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PIERBURG 7.22818.57.0 replacement Parts Details
  • Valve type: Solenoid Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Voltage [V]: 12
  • Technical Information Number: SI 0100
  • Condition: New
In stock
Details
-25%
Exhaust gas recirculation valve 7.22818.57.0 - £ 107,61 EGR Valve PIERBURG 7.22818.57.0
Article №: 7.22818.57.0
£ 107,61
£ 143,48**
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VEMO V10-63-0083 replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with gaskets/seals, with EGR cooler
  • Number of Poles: 5
  • Cooling Type: Water-cooled
  • Connector Shape: oval
  • New Part
  • See accessories list for additionally required parts
  • Recommended additional repairs: Mounting Kit
  • Part number of recommended accessories: V10-63-9083
  • Weight [kg]: 3,2
  • Packaging width [cm]: 45
  • Packaging height [cm]: 18,7
  • Supplementary Info: EXPERT KITS +
  • New part without deposit
  • Condition: New
In stock
Details
-25%
Egr module V10-63-0083 - £ 270,54 EGR Module VEMO V10-63-0083
Article №: V10-63-0083
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£ 360,72**
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WAHLER 710476D replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Condition: New
In stock
Details
-25%
Valve egr exhaust control 710476D - £ 340,29 EGR Valve WAHLER 710476D
Article №: 710476D
£ 340,29
£ 453,72**
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VDO 408-265-001-014Z replacement Parts Details
  • Supplementary Article/Info 2: Control Unit/Software must be trained/updated
  • Operating Mode: Electronic
  • Supplementary Article/Supplementary Info: with gaskets/seals, without gasket / seal
  • Part number of recommended accessories: 7701208628
  • Observe the vehicle manufacturer specifications
  • Always compare old and new part (in particular OE No.)
  • Condition: New
In stock
Details
-25%
EGR Valve 408-265-001-014Z - £ 182,61 EGR Valve VDO 408-265-001-014Z
Article №: 408-265-001-014Z
£ 182,61
£ 243,48**
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VALEO 700412 replacement Parts Details
  • Supplementary Article/Info 2: without vacuum bypass, without clamp
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: without EGR cooler, with gaskets/seals
  • Number of Poles: 5
  • Product line: ORIGINAL PART
  • Emission Standard: Euro 4 (D4)
  • Weight [kg]: 1,06
  • Condition: New
In stock
Details
-25%
Exhaust gas recirculation valve 700412 - £ 183,72 EGR Valve VALEO 700412
Article №: 700412
£ 183,72
£ 244,96**
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PIERBURG 7.28248.17.0 replacement Parts Details
  • Valve type: Solenoid Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Voltage [V]: 12
  • Technical Information Number: SI 1830
  • Condition: New
In stock
Details
-25%
Egr module 7.28248.17.0 - £ 93,54 EGR Valve PIERBURG 7.28248.17.0
Article №: 7.28248.17.0
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£ 124,72**
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PIERBURG 7.22875.16.0 replacement Parts Details
  • Valve type: Solenoid Valve
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Technical Information Number: SI 1830
  • Condition: New
In stock
Details
-25%
Valve egr exhaust control 7.22875.16.0 - £ 106,47 EGR Valve PIERBURG 7.22875.16.0
Article №: 7.22875.16.0
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£ 141,96**
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WAHLER 7527D replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Condition: New
In stock
Details
-25%
EGR Valve 7527D - £ 321,93 EGR Valve WAHLER 7527D
Article №: 7527D
£ 321,93
£ 429,24**
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NRF 48215 replacement Parts Details
  • Supplementary Article/Info 2: with EGR valve
  • Material: Stainless Steel
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with gaskets
  • Supplementary Info: EASY FIT
  • Condition: New
In stock
Details
-25%
Exhaust gas recirculation valve 48215 - £ 177,18 EGR Module NRF 48215
Article №: 48215
£ 177,18
£ 236,24**
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ELSTOCK 73-0007 replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with gaskets/seals
  • Number of connectors: 5
  • Net weight [kg]: 0,7
  • Condition: Remanufactured
In stock
Details
-25%
Egr module 73-0007 - £ 142,86 EGR Valve ELSTOCK 73-0007
Article №: 73-0007
£ 142,86
£ 190,48**
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WAHLER 7389D replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • Condition: New
In stock
Details
-25%
Valve egr exhaust control 7389D - £ 243,72 EGR Valve WAHLER 7389D
Article №: 7389D
£ 243,72
£ 324,96**
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DELPHI EG10395-12B1 replacement Parts Details
  • Number of Poles: 5
  • Supplementary Article/Supplementary Info: with gaskets/seals
  • Voltage [V]: 16
  • Trim Level: Linear
  • Condition: New
In stock
Details
-25%
EGR Valve EG10395-12B1 - £ 140,04 EGR Valve DELPHI EG10395-12B1
Article №: EG10395-12B1
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£ 186,72**
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WAHLER 710095D replacement Parts Details
  • Operating Mode: Electric
  • Supplementary Article/Supplementary Info: with seal
  • for OE number: 642 140 10 60
  • Condition: New
In stock
Details
-25%
Exhaust gas recirculation valve 710095D - £ 171,93 EGR Valve WAHLER 710095D
Article №: 710095D
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£ 229,24**
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