Member Since: 28 Jul 2020
Location: London
Posts: 5
EGR valves need replacing?
Please: my (independent) dealer tells me that the diagnostics show that the EGR valves need replacing and that it is dangerous not to do so as the motor might cut out at any time. I have not noticed any loss in power although the car has not been used too much recently for obvious reasons...
Please could anyone help advise what I shouold do? Thanks.
28th Jul 2020 11:31 am
G3Z
Member Since: 16 Dec 2018
Location: South Wales
Posts: 568
Just blank them and drive it. It’s a cheap £15 job.Defender 110 2.4 TDCi Utility Station Wagon.
2007 Disco 3 GS TDV6 Manual
200,000+ mile club 😎
28th Jul 2020 11:53 am
mikelondon79
Member Since: 28 Jul 2020
Location: London
Posts: 5
Thanks, G3Z. What exactly do the valves do please? Thanks.
28th Jul 2020 12:24 pm
G3Z
Member Since: 16 Dec 2018
Location: South Wales
Posts: 568
They open and close to allow recirculating of gasses to keep the emissions down.Defender 110 2.4 TDCi Utility Station Wagon.
2007 Disco 3 GS TDV6 Manual
200,000+ mile club 😎
28th Jul 2020 12:27 pm
mikelondon79
Member Since: 28 Jul 2020
Location: London
Posts: 5
Thanks so much. So is it right that they could cause the motor to cut out if they fail? Thanks.
28th Jul 2020 1:36 pm
G3Z
Member Since: 16 Dec 2018
Location: South Wales
Posts: 568
No -id guess the garage is just pressuring you into work being done. The worse that should happen is your vehicle will feel sluggish.Defender 110 2.4 TDCi Utility Station Wagon.
2007 Disco 3 GS TDV6 Manual
200,000+ mile club 😎
28th Jul 2020 2:00 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2908
If an egr sticks open the car can actually catch fire - the hot exhaust gas goes straight back into the plastic cylinder head. This happened to me on my 2009 HSE D3
Fortunately caught it before the fire got a hold and received a payout for fire from the InsuranceMust stop buying shiny toys....
28th Jul 2020 6:49 pm
G3Z
Member Since: 16 Dec 2018
Location: South Wales
Posts: 568
That’s why it’s best to blank them to stop any fumes even entering the EGR’sDefender 110 2.4 TDCi Utility Station Wagon.
2007 Disco 3 GS TDV6 Manual
200,000+ mile club 😎
28th Jul 2020 7:13 pm
mikelondon79
Member Since: 28 Jul 2020
Location: London
Posts: 5
If you blank them off, does it have any undesirable consequences? Does it screw up emissions on the mot? Thank you all for your help.
28th Jul 2020 10:04 pm
Regud
Member Since: 19 Aug 2020
Location: Saint Petersburg
Posts: 4
Muffle the valves. The heat exchanger is additionally removed from us. The program is being changed. Let Greenpeace think about the air. The car will go very quickly and there will be no mistakes.
19th Aug 2020 11:41 am
mikelondon79
Member Since: 28 Jul 2020
Location: London
Posts: 5
OK thank you.
19th Aug 2020 4:17 pm
nail7685435
Member Since: 19 Nov 2020
Location: kent
Posts: 1
egr cooler
hi i have a disco 3 2.7 v6 for about a week now and have a problem with the egr valves when the engine is cold very sluggish and wouldn't rev until the engine got hot so i got some egr cleaner and now after 30 seconds it runs fine but i have notice it is drinking a lot of coolant i have to top it up every day of about half / 1 little. just wondering if anyone can help with this problem? thanks
19th Nov 2020 9:11 pm
HUNTER44
Member Since: 10 Aug 2024
Location: İstanbul
Posts: 2
Hello dear friends.
I am writing to you from Istanbul / Turkey.
1 year ago I bought a 2005 model year Discovery 3 with 125.000 km mileage, maintained by an authorized service.
I have been using the car for 1 year, it has 138.000 km mileage currently.
I have not had any problems so far.
However, recently my car had a problem of not accelerating despite my pressing the gas pedal;
The first time, it was fixed when I stopped and started the car again, and the second time, it was fixed when I pressed the gas pedal all the way to the floor. After experiencing this problem, I took my car to a private service.
They said the problem was caused by the EGR valve. They disabled the EGR valve and reloaded the software to the car.
Then I set off on a long road of 800 km with my car with 5 people in my car, a fully loaded trunk and the air conditioner on;
I burned 12.3 lt at an average speed of 120 km and 11.3 lt at an average speed of 90 km. On this trip my tire pressures are; The front was 33, the rear was 42 PSI.
During this trip, I felt that my vehicle's 0-60 km/h acceleration slowed down significantly and I observed occasional fluctuations in my vehicle's rpm while cruising at a constant speed. These fluctuations caused a slight shaking in the car. At the same time, the “SPECIAL PROGRAMS OFF” warning came on twice during this long trip and TERRAIN RESPONSE was disabled.
After this service repair my fuel consumption increased and my vehicle's performance decreased slightly.
What do you think about this; Could something be missing / done wrong at the service, or are these experiences normal?
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Click image to enlarge
Last edited by HUNTER44 on 11th Aug 2024 2:50 pm. Edited 2 times in total
11th Aug 2024 12:41 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10735
If it suspected that the EGR's have failed open you should blank them with bits of metal.
Shaking and RPM fluctuation can be the torque convertor between the engine and automatic gearbox. You don't get an error message though. Dr Tranny can be a short term fix (add to gearbox oil).
You may want to check it has a good quality fuel filter fitted.
I can't comment on fuel consumption
11th Aug 2024 2:27 pm
HUNTER44
Member Since: 10 Aug 2024
Location: İstanbul
Posts: 2
After my 7 days summer trip, i will check the values again on my way back during 800 km away and bring it to service again to explain my complaining. I will share from here again the developments.
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