HCH2 EGR Port Cleaning - HOWTO - GreenHybrid - Hybrid Cars

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HCH2 EGR Port Cleaning - HOWTO

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  #1  
Old 03-15-2016, 09:43 PM
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Default 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:


You can likely leave this end of the hose connected and work the whole thing out, easier to reconnect only at the airbox:


Remove Inlet Plenum, two bolts, lift rear to disengage posts from grommets:


Remove Bracket, 2 bolts, clip, hose clamp and hose (beware small amount of coolant loss; plenum grommets in yellow):


Remove EGR Ports cover;


Clean Cover:


Carefully clean gasket:


Clean ports in Red, don't contaminate coolant in yellow:


I used 80psi compressed air to blow out all carbon deposits.
 

Last edited by S Keith; 07-27-2016 at 10:17 PM.
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  #2  
Old 03-16-2016, 01:46 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

Good write-up, the ChrisFix's video on youtube leaves much to be desired,

why disconnect the airhose at the airbox? I only disconnect on the manifold
 
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Old 03-16-2016, 01:51 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

It may not be necessary. I had a lot easier time manipulating it with it disconnected from the air box.
 
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Old 03-16-2016, 01:52 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

Originally Posted by S Keith View Post
It may not be necessary. I had a lot easier time manipulating it with it disconnected from the air box.
When I do it, I remove the bolts, lift up on it, then twist it and it slides off

Putting it back on is the hard part
 
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Old 03-16-2016, 01:56 PM
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Default 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.
 
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  #6  
Old 03-16-2016, 02:02 PM
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Default 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
 
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Old 03-16-2016, 02:07 PM
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Default 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.
 
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Old 03-16-2016, 07:03 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

Excellent info. Thanks for posting!
 
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Old 07-16-2016, 11:09 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

Originally Posted by S Keith View Post
It may not be necessary. I had a lot easier time manipulating it with it disconnected from the air box.
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.
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  #10  
Old 07-27-2016, 10:11 PM
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Default Re: HCH2 EGR Port Cleaning - HOWTO

Pictures do not display. Is it me or the forum?
 
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