HCH2 EGR Port Cleaning - HOWTO
#1
HCH2 EGR Port Cleaning - HOWTO
If one or more of the EGR ports get plugged, rough running or light pinging can be heard at cruise and light throttle settings. Clean as follows:
Detach/loosen hose at airbox:
https://www.dropbox.com/s/1tb7cch1le...0Hose.jpg?dl=0
You can likely leave this end of the hose connected and work the whole thing out, easier to reconnect only at the airbox:
https://www.dropbox.com/s/syuy5b78bl...0Hose.jpg?dl=0
Remove Inlet Plenum, two bolts, lift rear to disengage posts from grommets:
https://www.dropbox.com/s/cqg10h9zf2...mmets.jpg?dl=0
Remove Bracket, 2 bolts, clip, hose clamp and hose (beware small amount of coolant loss; plenum grommets in yellow):
https://www.dropbox.com/s/23vkellc90...ellow.jpg?dl=0
Remove EGR Ports cover;
https://www.dropbox.com/s/s9lfzsv5uq...cover.jpg?dl=0
Clean Cover:
https://www.dropbox.com/s/u2ez54z6u6...cover.jpg?dl=0
Carefully clean gasket:
https://www.dropbox.com/s/xik5j3dzox...place.jpg?dl=0
Clean ports in Red, don't contaminate coolant in yellow:
https://www.dropbox.com/s/g5xu91weux...ellow.jpg?dl=0
I used 80psi compressed air to blow out all carbon deposits.
Detach/loosen hose at airbox:
https://www.dropbox.com/s/1tb7cch1le...0Hose.jpg?dl=0
You can likely leave this end of the hose connected and work the whole thing out, easier to reconnect only at the airbox:
https://www.dropbox.com/s/syuy5b78bl...0Hose.jpg?dl=0
Remove Inlet Plenum, two bolts, lift rear to disengage posts from grommets:
https://www.dropbox.com/s/cqg10h9zf2...mmets.jpg?dl=0
Remove Bracket, 2 bolts, clip, hose clamp and hose (beware small amount of coolant loss; plenum grommets in yellow):
https://www.dropbox.com/s/23vkellc90...ellow.jpg?dl=0
Remove EGR Ports cover;
https://www.dropbox.com/s/s9lfzsv5uq...cover.jpg?dl=0
Clean Cover:
https://www.dropbox.com/s/u2ez54z6u6...cover.jpg?dl=0
Carefully clean gasket:
https://www.dropbox.com/s/xik5j3dzox...place.jpg?dl=0
Clean ports in Red, don't contaminate coolant in yellow:
https://www.dropbox.com/s/g5xu91weux...ellow.jpg?dl=0
I used 80psi compressed air to blow out all carbon deposits.
Last edited by S Keith; 11-04-2018 at 01:10 PM.
#4
Re: HCH2 EGR Port Cleaning - HOWTO
Putting it back on is the hard part
#5
Re: HCH2 EGR Port Cleaning - HOWTO
You just jogged my memory.
I disconnected it only at the airbox and fed it through. At assembly, I fed it back through, re-attached at the airbox, mounted plenum and rotated hose as needed.
This was a year and a half ago, and my mid-forties brain is leaking.
Editing post.
I disconnected it only at the airbox and fed it through. At assembly, I fed it back through, re-attached at the airbox, mounted plenum and rotated hose as needed.
This was a year and a half ago, and my mid-forties brain is leaking.
Editing post.
#6
Re: HCH2 EGR Port Cleaning - HOWTO
That /does/ sound like a job...
*edit* Went to go check it because your post reminded me that was on my to-do list... couldn't find the socket bit for my impact... far too lazy to use a regular wrench now that I have the impact
*edit* Went to go check it because your post reminded me that was on my to-do list... couldn't find the socket bit for my impact... far too lazy to use a regular wrench now that I have the impact
#7
Re: HCH2 EGR Port Cleaning - HOWTO
Oh... you're telling me... bought a cordless impact and OMFG... what took me so long to get one of these? I used it during motor mount and Cat replacement. Joy.
#9
Re: HCH2 EGR Port Cleaning - HOWTO
Finally did this, I had a 4mm thick crusty deposit I had to cut off with a screw driver. Thicker in other parts. I did my best to not get it in holes by using a vacuum, but over all I got it all out. I try my best to clean that inner port where it goes down, but A screw driver and brush can only go so far.
Last edited by HybridGates; 07-16-2016 at 11:14 PM.