Thread: B13 EGR Cleaning Help ( have searched )

Hello,

I have searched up and down through pages and pages of EGR post and cannot find my answer..
I have failed NOx emmisions terribly and so I did some reasearch and I believe its mostly due to
a non functional EGR System.

So I cleaned my EGR Valve replaced a few cracked vaccum lines and when I went to check the
EGR Small Tube ( metal under the BPT I think ) that runs to the larger tube to the header I feel
no exhaust nothing.

So its clogged for sure. I have tried everything from welding rod, various metal wires, I attached
a vertical hose, Filled with carb cleaner for an 2+hours and then tried repeatly and I cannot clear
the blockage.

It seems I make it all the way to the end and hit a wall.

My question is. That metal hose attachs to a rubber hose and then into the valve. Can I just
dremal of most of that metal part, get a direct shot at the hole, free the blockage and then attach
a proper sized piece of high temp exhuast hose for the vacuum to the valve?

Basically I am just replacing more of the metal hose with high temp rubber hose?

If anyone has any help in cleaning the metal hose that I missed please chime in or if this will work
with no problems also chime in.

Thanks in advance,

I'm not sure that you will be able to access the blockage even if you cut the smaller pipe. I can't quite picture the configuration in my head. And you would want to be careful about introducing metal particles into your intake.

The way I have done this is the past is to remove the rubber hose from the top of the small pipe, remove the 2 bolts at the top of the larger pipe, and unscrew the bottom end of the larger pipe from the header. This allows you to rotate the pipe and, through an unnatural act of contortion, possibly involving mirrors, gain access to the small hole (it's like 2 to 3 mm in diameter) where the little pipe goes into the bigger pipe (this opening faces the passenger side of the car). A curved dental pick works well to reach around and clear the blockage.

I bought a new pipe (header to BPT) from GregV for a reasonable amount of money (well under $100 but I do not remember the exact amount). This is another way to go once you bugger up the fitting at the header so severely that no tool except a vice grip can be used.

Good luck with finding the right solution for your situation.

Thanks Bill! Thats what I was kinda looking for some inside info before I waste my time attempting that.