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Toddyh03 Profile
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Date Registered: 08-2011
Location: Lalor Park, NSW
TOTAL POSTS: 1663
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Re: EGR Valve Cleaning


Thanks for taking the time to get that info Mark. I have ordered from ebay now. If you go to a mechanic that is not a dealer I reckon you should be able to ask them to order it for you locally by the sound of it.

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Toddyh X-2048 (c)
New: Challenger
Old: 2010 T31 Diesel modified
My XTrail
21/Feb/2013, 6:42 am Link to this post Send Email PM   Send Private Message Blog
 
rescue1 Profile
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Date Registered: 01-2009
TOTAL POSTS: 1384
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Re:


EGR3 has been replaced by EGR4, still not available here, but here's some product notes

EGR4 Product Notes

Wynns Australia Website

Last edited by rescue1, 21/Feb/2013, 4:06 pm


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Alan & Phillipa
2008 X-Trail TL White Diamond
Plumpton NSW
Our Mods
X-1112 (C)

21/Feb/2013, 3:58 pm Link to this post Send Email PM   Send Private Message
 
Charlie250 Profile
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Date Registered: 08-2012
TOTAL POSTS: 193
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Re: EGR Valve Cleaning


quote:

Exywarrior wrote:

 
 

Where we could really gain some ground though is that if the EGR valve getting dirty is a problem in the diesel (and my understanding is all Euro diesel cars are susceptible to the problem) then perhaps Nissan should introduce a regular EGR valve cleaning schedule in the service book! Surely that wouldn't be hard and it might reduce the rate of EGR valve failures!

Incidentally my Nissan mechanic has taken the decision to replace my EGR valve (odo: 28000km) and I wasn't surprised to find out that there is nil stock global in Australia....so I have a bit of a wait. But at least I've had absolutely no problem getting it done under warranty and the mechanic is a really nice guy who seems to know one hell of a lot about this engine. He's given me a lot of good tips! One important apparently is that to reduce the EGR valve gungeing up he suggests to not pussyfoot around during acceleration...well for some of us that might be big cultural change right there! More to follow as I learn more from this guy.




I totally agree with you. I had a Nissan service manager advise me that the T31 Diesel needs regular doses of right foot and a few RPM to give the system a good blow out. (His exact words were that I occasionlally need to drive it like I stole it!) Regular low RPM driving is VERY BAD for the EGR.

I admit I took it very easy for the first 3000km and changed gears at low rpm to make the motor use the torque and gradually introduced some RPM. But even with regular hard accelleration bursts overtaking 3 trailer road trains in Western NSW & Qld between 5000km & 10,000km on the odometer, I've still had to have my EGR valve replaced at the 10,000km service.

Luckilly it was covered under warranty, but my concern is obviously about the frequency of the problem and what it will cost to fix out of warranty for what is essentially a design fault.



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X-2634 2012 Series IV TS Man, Kings Springs, Bridgestone D697's, High Tech Exhaust, Turbo Timer, DBA Slotted Rotors, QFM HPX Pads, Tow Bar, Cargo Barrier, UHF, HID Dr Lights, LED Light Bar, K&N Filter, Bonnet Struts, & Premium Tint
25/Mar/2013, 9:11 pm Link to this post Send Email PM   Send Private Message Blog
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
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Re: EGR Valve Cleaning


This is interesting - I have the dreaded MIL light come on a few days after the dealer cleared it and advised EGR valve needs replacing. I think it needs a good clean.

However I have always driven diesels in the 2k rpm band which is where they develop maximum torque. Giving it the boot seems counterproductive. 90% of my driving has been highway/country so I am disappointed with this issue.

I don't think it is a design fault but rather a product of strict emission controls.

Other vehicles - diesels with Euro 4/5 are also affected.

Question : How long should i drive the vehicle with this error ? Will this particular error cause the ECM to go into "limp home" mode ?


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X-916, VW Golf 90TSi manual, limestone grey, no extras
2008 TL dc i, manual, twilight; full set bash plates, jaos strut bar
- traded
26/Mar/2013, 12:31 am Link to this post Send Email PM   Send Private Message
 
cooch t31 Profile
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Date Registered: 06-2008
Location: Blue Mountains, NSW
TOTAL POSTS: 5966
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Re:


Depends on how blocked the EGR is.
Any light on the dash is the to warn the driver of faults and I don't think you should ignore it.

Personally when I was installing the LED scuff plates, I must have nudged the Air bag sensor near the passenger seat belt.
It displayed the light on the dash at start up.
The stupid light kept flashing and that alone drove me nuts until Nissan cleared it 4 days later.

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Tony X-891c

HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1

26/Mar/2013, 5:20 am Link to this post Send Private Message
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
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Re: EGR Valve Cleaning


I thought with a bit of spare time I would attempt the strip down as detailed by Toddyh03. However lack of a 8mm long head socket prevented removal of a couple of key bolts.

So I embarked on the next best route and used some upper head/carby cleaner I had and ended up almost using a can. Warmed up engine, stopped and sprayed - waiting five minutes and restarted - repeated three times.

I also wasn't surprised to see the oily deposits around the various hoses/connecting pipes, including the intake plenum - cleaned all with some shellite.

Took the car for a run this morning and the MIL light went out.

So I beginning to question what the dealer is telling me - ie, need to replace the EGR Valve at a total cost of approx $1,200.

Will get some long sockets and re-attempt the complete stripdown but for the time being, will see how long this clean lasts.

I agree with previous comments that this cleaning needs to be a regular maintenance item.



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X-916, VW Golf 90TSi manual, limestone grey, no extras
2008 TL dc i, manual, twilight; full set bash plates, jaos strut bar
- traded
30/Mar/2013, 2:08 pm Link to this post Send Email PM   Send Private Message
 
Toddyh03 Profile
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Date Registered: 08-2011
Location: Lalor Park, NSW
TOTAL POSTS: 1663
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Re: EGR Valve Cleaning


Definitely spend money on an 8mm socket and do the clean properly before forking out for a new EGR valve. If you use carby cleaner be careful not to get it on any of the plastic sensors.

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Toddyh X-2048 (c)
New: Challenger
Old: 2010 T31 Diesel modified
My XTrail
31/Mar/2013, 10:41 pm Link to this post Send Email PM   Send Private Message Blog
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
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Re: EGR Valve Cleaning


Will do Todd.

One would have thought with the countless hours of engine development time that these systems take before coming to market, both the engine manufacturers and the component suppliers - Bosch, Siemens-VDO, Denso would have designed some serviceability into their products. For example an easily accessible/removable blanking plate on the EGR valve housing to allow routine access for cleaning fluids etc would have been a 'no-brainer'. In this respect older cars - pre EFI/emissions were so much easier to maintain.

John



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X-916, VW Golf 90TSi manual, limestone grey, no extras
2008 TL dc i, manual, twilight; full set bash plates, jaos strut bar
- traded
1/Apr/2013, 9:26 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re:


Hi Guys,

This thread has now been renamed to cover the EGR Cleaning Issues and any EGR related MIL Error Codes that trigger a "check engine light"

Please use this thread to discuss any EGR related issues and keep the DPF related issues to its own thread that is separate to this.

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2/Apr/2013, 9:42 am Link to this post Send Private Message MSN Blog
 
Exywarrior Profile
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Date Registered: 10-2011
Location: Darwin, NT
TOTAL POSTS: 325
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Re: Re:


I had a MIL light appear last month (around 5 March) and on taking it to the dealer he revealed it was the EGR valve. I had to wait for 10 days for the part to arrive from Japan. The repair was all done under warranty.
I had it replaced but within two days the car was back at the dealers the following Friday with a hissing air noise coming from the vicinity of the turbocharger when under high load. I booked the car in to have this fixed on the next Wednesday.
It never lasted until Wednesday, unfortunately...the boost problem worsened on the Saturday and the engine had no power, so ended up on the roadside in suburban Canberra and was indignantly taken on the back of a truck back to the dealers. Of course such defects always happen on a weekend!
Second defect turned out to be the o-ring seal on the turbo inlet tube to the engine (I suspect it wasn't put back properly when they did the EGR valve?). Again, it was a case of nil stock available in Australia but thankfully, the dealer agreed to rob the part off a new TS sitting in the yard and got my car back on the road within a couple of days.
It didn't last long...the very day I got the car back, the MIL light came on yet again. I drove her back to the dealer in 'limp home' mode and this time it's the diesel particulate filter needs replacing. Apparently this is a knock-on defect from the previous ones. Really strange as I always run her above 2000RPM and she gets plenty of freeway time and did the Nullarbor just beautifully...so I'm pretty sure the turbo boost problem probably triggered the DPF issue.
Anyway, it's another 10-day wait for this part too....so my car will have been off the road for a month by the time I get it back. They say problems come in 3's - so hopefully this is the last.
On the bright side the dealer has been fabulous - he's given me a rental car for the whole time and has tried hard to get me back on the road as soon as possible. There's a good lesson there that if your car is under warranty and gets a defect, no point in fiddling yourself!
Anyway, getting back on the subject of the thread, my dealer has said that you need to give the diesel a regular good run and not be too light on the throttle. Manual owners need to avoid running the engine at low speed in top gear - this will kill the EGR very quickly, apparently! They also say that the EGR valve issue is pretty standard on most Euro 4 diesels (my dealer does VW diesels as well and they have similar EGR problems).
Apparently a lot of the EGR issues are related to the high sulphur content of Aussie diesel - European diesel has even lower sulphur levels than ours.
Anyway, I'll let you know how I get on with the car once I get it back mid-April.
A frustrating chain of defects, but hopefully she will come back as good as ever.

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Mark T
2011 Series 4 T31 TL Auto - Twilight, factory towbar, factory mats, tinting, Cooper CS5s, cathodic protection, paint protection, yada yada...and no Provent
X-2099
2/Apr/2013, 11:59 am Link to this post Send Email PM   Send Private Message Blog
 


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