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Problems With Egr Valve


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#1 SimonH29

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Posted 08 March 2013 - 03:38 PM

Hi all

 

I have a 2007 (On a 06 plate tho) 2.2lt TDCi mondeo estate with a duratek engine,

 

I've owned the car for just over 2 years and am about to replace the EGR valve for the second time. I have been told that this is a common fault and these valves only seem to last 18 months to 2 years at a time.....

 

Its been code read and the only error is this valve and last time we changed it, the car ran like a dream until recently when it started refusing to start and then chucking huge clouds of smoke out when it eventually did or losing all power when driving, especially when pulling away. Had the valve cleaned out a number of times to keep it running for as long as possible as the new valve is not cheap but finally had enough and am having it changed again!!

 

Is there really a common fault with this year and EGR valves or could there be a problem else where in the engine causing this valve to brakedown and is there anything that can be done to stop it happening??

 

Thanks in advance



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#2 mintalkin

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Posted 08 March 2013 - 03:45 PM

its rare for a valve unit to be replaced as a good clean is usually all they need, check the intercooler pipe below for any splits as this can effect the egr valve and produce black smoke, what code are you getting is it P0401 lack of air flow ?



#3 FOCA

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Posted 08 March 2013 - 03:45 PM

Hello and welcome to the forum

 

You can fit an EGR blanking plate, it only costs about £5 so is much cheaper than an EGR valve and once fitted, you are unlikely to have any problems - apart from the EML coming on on euro 4 cars 

 

, the not starting, clouds of smoke and lack of power (due to a faulty EGR valve ) will not happen again with a blanked EGR, and "limp home mode" is unlikely to be triggered 

 

 Although the EML may come on, (the ECU may notice the lack of flow) it should not cause other problems and the EML can be reset with an inexpensive code reader      

 

Best with a sold (ones with holes in are a waste of time), stainless steel (mild steel can rust, aluninium can melt) blanking plate

 

I have heard of Ford owners having to replace their EGR valves 4 times in as many years, this is a weakness in these cars, the iroinic thing is they are not really nessesary on a diesel and probably do more harm than good, especially - long term

 

Needless to say a Diesel car with a blanked EGR still passes a UK MOT because only particllates are measured (may even help due to less smoke)



#4 SimonH29

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Posted 08 March 2013 - 04:16 PM

Hi

 

Thanks for the replies

 

its rare for a valve unit to be replaced as a good clean is usually all they need, check the intercooler pipe below for any splits as this can effect the egr valve and produce black smoke, what code are you getting is it P0401 lack of air flow ?

 

I'm not sure what the error code was but will ask the guy who did it. When He took the valve off he said it was stuck slightly open and was covered in a thick black shooty/tar but he said this was caused by it not working properly.

 

How does the braking plate work and does it effect performance?

 

 I'm really a complete novice with engines.



#5 FOCA

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Posted 08 March 2013 - 05:14 PM

Mintalkin may have a point - if the engine is producing exess smoke from the exhaust due to a split pipe

 

(the split pipe reduces the boost pressure/ air going into the engine, this can be the smoke from the exessive diesel being burnt )

 

this can cause a "knock-on-effect" on  the EGR , as the carbon - rich exhaust gasses enter the inlet & EGR valve (EGR stands for "exhaust gas recirculation") this can cause the valve to get "gunged up" sooner than expected

 

It is worth checking the boost hoses for splits, as well as the EGR,

 

in my opinion, it is worth fitting an EGR blanking plate on a brand new EGR or brand new  (diesel) engine, because this will prevent the EGR valve and inlet manifold from being contaminated with carbon/ gunge, and it will stay clean from this source of contamination

 

In the short term there is a small performance / economy advantage from fitting an EGR blanking plate (the burnt exhaust gasses are replaced with clean, cool air ), these exhaust gases were a small percentage of the overall fuel/ air going to the engine, so the difference may be subtle, it (blanking the EGR) is often percieved as "smoother running" "less hesitation" "less of a flat spot" - this is in the short term, in the long term the plate prevents the build- up of carbon/ gunge in the inlet so it boes not have to be cleansd out and does not choke/ restrict the engine

 

The other thing worth mentioning is a solid blanking plate will "fix" a faulty or leaking EGR valve - the EGR becomes effectively "disabled" / non functional, - +  it can't fail/ break again (makes the car/ engine more reliable)

 

(its a mk3 Mondeo with a duratorque (Ford) 2.2 155ps? not a Mk 4 with a PSA engine)        



#6 SimonH29

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Posted 08 March 2013 - 05:24 PM

Many thanks for the replies.

 

Disabling the EGR valve sounds like heaven after the money its cost me....

 

Where would I get one?

 

Thanks



#7 Maddogpro

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Posted 08 March 2013 - 06:20 PM

Ebay search for mondeo egr blanking plate its a 5 minute job too put in 

 

 

 

 

http://www.ebay.co.u...=item1e6e2b7aac



#8 Steve

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Posted 08 March 2013 - 08:28 PM

great responses from mintalkin and FOCA!!



#9 BigD

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Posted 09 March 2013 - 10:44 PM

If you find that you do need a new EGR valve, get one from Jaguar.  Identical part, half the price.



#10 Badman

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Posted 10 March 2013 - 05:23 PM

I have a 2.0l Mondeo titanium estate-December 2006 reg and have had  similar probs, but not as bad, as described above. How do I find if it is euro4 engine(what is a euro 4 engine? ). The car is high milage (125000 ) and runs better than my previous petrol Mondeo exept for smoke on hard acceleration. I am getting ready to do oil/filter change so am thinking of blanking the egr if I can. Will it be ok to do it or will it cause any problems?

 Hope someone can enlighten me.



#11 Maddogpro

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Posted 10 March 2013 - 06:21 PM

Have you a picture take the engine cover off front left as your looking is the egr if it has a plug attached its a euro 4 if not its a euro 3 .......The 3 is fine to blank no emllights the 4 may show an eml light but these can be reset with a£25 gadget off Ebay



#12 baitman

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Posted 11 March 2013 - 03:31 PM

I have a 2.0l Mondeo titanium estate-December 2006 reg and have had  similar probs, but not as bad, as described above. How do I find if it is euro4 engine(what is a euro 4 engine? ). The car is high milage (125000 ) and runs better than my previous petrol Mondeo exept for smoke on hard acceleration. I am getting ready to do oil/filter change so am thinking of blanking the egr if I can. Will it be ok to do it or will it cause any problems?

 Hope someone can enlighten me.

my 2005 mondeo is a euro4. the euro 4 engine has two wired sensors on the egr valve, euro 3 only has one.

once you have run some forte diesel treatment through the system to give it a bit of a clean it might then be worth blanking off your egr. i have ordered one and will fit once i take the car for a decent run to blow and build up through since the egr was cleaned.



#13 Badman

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Posted 11 March 2013 - 05:54 PM

I have read in these posts about this "Forte "treatment,where can I get some and how much is it?.I have also read that the euro 4 needs a blank with a small hole but in other posts it is a plain blank with no hole. Which is correct?



#14 Maddogpro

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Posted 11 March 2013 - 06:15 PM

One with the hole is of no use .......



#15 baitman

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Posted 11 March 2013 - 06:34 PM

I have read in these posts about this "Forte "treatment,where can I get some and how much is it?.I have also read that the euro 4 needs a blank with a small hole but in other posts it is a plain blank with no hole. Which is correct?

forte; http://www.ebay.co.u...=item460d1cf358

 

i have ordered the egr blanking plate with no hole in it. this will probably mean the eml will light as it thinks there is a fault, but i can live with that. i would get it turned off if i could get it done very cheap or for free but its not the end of the world.



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