EGR bypass query - Page 3

Geoff · 12th November 2008, 16:38

Inspired by the picture of a very gungy EGR valve, I took the one off our 131CDTi that has covered 40,000 miles since new, and discovered that was very gungy too. A horrid sticky black sludge - recommend gloves. Well I zealously cleaned it and that made me feel better, but I can't detect any changes in the performance or mpg, but cleaning the valve does not clean the inlet manifold which has a much greater surface area. Whether replacing the EGR valve will gradually clean out the manifold as well -who knows?

MOT due on Friday - I'll see whether there is any problem with the emissions and give the car an Italian tune up tonight.

Dragrad · 25th November 2008, 00:24

Cleaned my EGR valve about 6 weeks ago. Boy was it gunged up!! Had cleaned it back in May '08 (when my troubles started in Southampton). Now taken it off last week, and put on the EGR by-pass on. Still evaluating.....

How did the MoT go Geoff?

Dragrad · 25th November 2008, 00:33

Quote:

Originally Posted by Mr bountyfull

So you are not going for the discreet mods from pm.

Steve.

Sorry, Steve, Yes one of the things to look at, among many things to do. But, with my history with the car, it's pretty well one mod at a time

25th November 2008, 00:24	#22
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Cleaned my EGR valve about 6 weeks ago. Boy was it gunged up!! Had cleaned it back in May '08 (when my troubles started in Southampton). Now taken it off last week, and put on the EGR by-pass on. Still evaluating..... How did the MoT go Geoff? __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER... Last edited by Dragrad; 25th November 2008 at 00:27..

12th November 2008, 16:38	#21
Geoff Regular poster 75 cdti auto contemporary SE tourer 2004 Join Date: Oct 2008 Location: Wokingham,Berkshire &Ventnor IoW Posts: 40 Thanks: 0 Thanked 0 Times in 0 Posts	Inspired by the picture of a very gungy EGR valve, I took the one off our 131CDTi that has covered 40,000 miles since new, and discovered that was very gungy too. A horrid sticky black sludge - recommend gloves. Well I zealously cleaned it and that made me feel better, but I can't detect any changes in the performance or mpg, but cleaning the valve does not clean the inlet manifold which has a much greater surface area. Whether replacing the EGR valve will gradually clean out the manifold as well -who knows? MOT due on Friday - I'll see whether there is any problem with the emissions and give the car an Italian tune up tonight.