EGR cleaning

ISS

Member
Hello.
My van is acting craizy in the low RPM's, and I know it is a EGR. ( been there done that 3 times ) But before( on the warranty ) I servicet at the dealer, so, no more warranty even for the EGR so I planning to remove it and clean it.
Question: do I have to unplug the battery and connector from EGR or just the EGR connector? Thank you!!!
Who done this? Any tips appreciated!!!
 
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ISS

Member
Thank you all. I will try to remove and clean.
The EGR cooler is a one year old. (
dealer replaced under warranty )
 

Pasieka

New member
The other issue after a certain point the EGR cooler may need cleaning as well.
After a certain point the coupling thingies ( they look like square extruded electric motor commuter brushes ) may fracture. Then the spring which returns the prop to start position does not return the stepper motor to its proper indent... stepper motors have feedback and thus detect position. If your curious what the inside of your EGR looks like I am attaching pictures. from what I can tell, it would be impossible to reassemble an EGR if you take these two halves apart and more importantly I believe tapping or using a hammer can drop 9ne of the 4 thingies out of position so i shall never again tap one out like others suggest doing in this post. I believe I could machine a new means of coupling the drive with the propeller ( thing looks like a boat prop... others are calling it a tulip or butterfly interchangeably ). For now I'll reinstall with the new 500 dollar EGR and 4 dollar gasket as it's not worth my time to have engine problems. By the way I believe my EGR failed because I was using the filter status indicator instead of checking my airfilter... my indicator ceased up and stuff was growing in my K and N filter... will post new thread on repairing the indicator but let me say most of you do not have it. Instead you have a plug in your air filter housing... my dads sprinter is the only one I ever saw with it and I have worked on 30 or so sprinters to date.. you may find soot or some type of oil film on your mass airflow sensor as I did and clean it with the appropriate products.


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4wheeldog

2018 144" Tall Revel
By the way I believe my EGR failed because I was using the filter status indicator instead of checking my airfilter... my indicator ceased up and stuff was growing in my K and N filter.
you may find soot or some type of oil film on your mass airflow sensor as I did and clean it with the appropriate products.
Every K&N or oiled air filter I have come across deposits smootch (Technical term for oil and dust crap) on the MAF sensor. The oil is a bad idea, and the dirt downstream of the filter has convinced me they are a bad idea. OEM fiber filters for me.
 

Pasieka

New member
Every K&N or oiled air filter I have come across deposits smootch (Technical term for oil and dust crap) on the MAF sensor. The oil is a bad idea, and the dirt downstream of the filter has convinced me they are a bad idea. OEM fiber filters for me.
What bothers me is the color... k and n oil is red... I also found particles to large to get past the filter and believe the o ring where the mass air flow seals to the upper air filter housing let's stuff seep by as debris excessively accumulated on the ring in only certain areas

My antique motorcycles and some of my tractors actually use oil to filter air and have no fiber filters.


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4wheeldog

2018 144" Tall Revel
My antique motorcycles and some of my tractors actually use oil to filter air and have no fiber filters.


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Those antique motorcycles and tractors don’t have MAF sensors. And ingesting a bit of oil is normal, for both.
It does look like you found your problem, if not the cause.
Anyway......I will amend my statement........In my experience, oiled fiber filters such as K&N provide no discernible benefit, and cause increased wear, along with MAF problems.
They are gravel stoppers, and as such, better than an open carb throat.
 

pipimiller

New member
Re: EGR cleaning HELP

Need help, I have a 2005 sprinter and I was having it go into limp mode so I took out the egr today to clean it. Well to start with I took off the top part and realized that was not correct and put it back on and then took out the egr and cleaned it. I think I didn't put the top back on correctly because the butterfly doesn't spring back. I put it back in and started the van and it ran really bad, worse than before I did anything. Did I screw it up? And can I fix it?
 

Pasieka

New member
Re: EGR cleaning HELP

Need help, I have a 2005 sprinter and I was having it go into limp mode so I took out the egr today to clean it. Well to start with I took off the top part and realized that was not correct and put it back on and then took out the egr and cleaned it. I think I didn't put the top back on correctly because the butterfly doesn't spring back. I put it back in and started the van and it ran really bad, worse than before I did anything. Did I screw it up? And can I fix it?
I pulled my supposedly broken one apart and I believe little pieces of graphite fell out between the motor and egr propeller as they couple with gaps without these pieces.. hope the pictures assist in reassembling... I'm suspecting your motor is not in the off orientation and you reassembled with the shafts interfering instead of coupling. The pictures below are what position mine came apart in without disturbing shaft orientations... you unscrewed the security torx bolts instead of the 8mm socket splines?


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Pasieka

New member
So after installing the new egr , cleaning air filter and crank case filter as well as mass airflow sensor and 4 temp and pressure sensors between air filter intake and intake manifold, the CEL went of by itself after 3 ignition cycles and drives of more then 5 minutes each.


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