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How To: EGR block off in LMM !!

238K views 405 replies 117 participants last post by  Eagleye88  
#1 ·
Ok...after much swearing and general deliberation I think I've come up with an easy system to install an EGR block off plate in a 07.5-09 LMM. You will need :

Moving blanket or other thick blanket
2 Stubby flat blade screw drivers..I like the craftsman ones
1 12mm ratcheting wrench
1 14mm stubby open end wrench
Tin snips/hack saw/band saw

First thing to start with is removing the intake elbow from the filter box and the turbo inlet tube and set it aside. Then remove the silencer (large plastic box with the 6.6 on it) it's clamped on the underside to the turbo inlet tube and fastened in the front by a torx fastener. Now, lay the blanket over the air box and the engine bay on the passenger side up to the turbo inlet....this makes working back there ten times better. The EGR pieces you're looking for are located almost at the firewall on the passenger side of the compartment. Remove the small sensor that is screwed into the engine side of the EGR piece and move it out of the way...this will take a 14mm open end wrench. You now have as much access as you're going to get and this is where the 12mm ratcheting wrench will be your best friend. Loosen the 2 12mm nuts holding the EGR mating surfaces together...they face the firewall and are offset from one and other passenger side lower than the driver side. THEY ARE VERY TIGHT !!! You may need to link another box end wrench on your ratcheting wrench to get enough leverage to get them off...be persistent. Now the fun part...with both nuts fully removed wedge one stubby screwdriver at the top of the mating surface and pry like your life depends on it...mine was exceptionally tight. (Make sure the gasket is on the firewall side mating surface) Once you have the parts separated take the other screwdriver and wedge it in on the outside of the driver side bolt sideways. Keep working the two screwdrivers until you can get the sideways screwdriver pushed in almost almost all the way down the blade...trust me it will stay in place. Take the EGR block off plate you purchase from your retailer...I used the one from Meyer performance...and snip the ears off the far side of each plate. It should wind up looking like it's got a hook on either side where the stud will locate it...I trimmed mine like this so you can leave the screwdriver in place while you drop the plate it. Wiggle the plate into position...at this point my plate just about fell into place. Reassemble everything in reverse...don't forget that little sensor you just removed...and you should be EGR deleted. My first attempt at installing the plate took me forever...I just did a buddies truck and it took me 20 minutes start to finish...GOOD LUCK !!!!
:drink
 
#125 · (Edited)
Hey, i just wanted to add a bit of info to those who are having problems with getting the bolts loose. I made a little part that screws onto the backside of the stud (M8X1.25) after you have the 12 mm wrench on so you never have to worry about the wrench slipping off. Took only a few minutes on the lathe and well worth it in the end. All it is is the head of a bolt cut off and a hole drilled and tapped in it....i just machined it cuz i only could find a big bolt...but would have been nice to find a 9/16 so you could use the head and have grip to turn it on the stud.

Also for anyone having a hell of a time tryin to double wrench and get some torque out of it I tried doing this method of double wrenching it seems to work very well. We used the 12mm stubby ratchet wrench for the close nut and the long 12mm for the other nut.
 

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#132 ·
Very Good idea. We do get very creative when things are not working.. :drink
 
#126 ·
Also for those having trouble gettin the bottom of the plate in... Which me and zack did on both our trucks.... First if you look at the part with the green X's... this surface sticks out past the plane of the surface of the EGR flange so you have to pry it apart to be able to clear that, Second the red X is another place that the plate will get hung up on, we ground and trimmed the plate to clear that as well.

Sorry if the pics arent the greatest its -46 with the wind right now... wasnt waitin for the perfect pic sorry...
 
#131 ·
You have to get that plate in in a straight angle. it fits between the studs but very tight. theses plates are all laser cut so i doubt that 2 of them from the same place would be different.
 
#134 ·
I didn't fail the first time cause I never give up but it took me over 1 hour to get the first nut loose.
 
#138 ·
Well... maybe not quite as much of a PITA second time around.
 
#139 ·
I spent a lot of extra time making sure it was all the way in this time. I don't want to have to go back in there two more times this round.
 
#140 ·
got my ass kicked last night trying to do mine. Everything was loosened up, but the plate would not fit no matter what. It would get so damn close, but not seat down enough. It's to the point where I'm wondering if I got the wrong model plate sent to me.

I got help from Denny (he did his already) and neither of us could get it. But we did invent some new curse words.
 
#144 ·
All I trimmed off of mine that I did yesterday was the wing that goes around the bolt for the bottom.
 
#145 ·
There is a good picture on page 8 of this thread, except that I only trimmed one of the ears.
 
#148 ·
Yeah.... guys you don't need that wing on there..... cut it right off... F*ck IT!!!!! it has nothing to do with blockin the egr..... with that gone just leave the lip so the plate rests on the bolt thats all....

If i were to do it again this is how id trim it....
 

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