-I found this works super well for cleaning out the egr cooler
https://www.youtube.com/watch?v=AAI4ccIXZ9o
-Here is a good video on what bolts to remove
https://www.youtube.com/watch?v=C5wAWHwfB7Q&t=326s
*Note: I am of the opinion that cleaning the egr valve does absolutely nothing, but some people have claimed it helps so your mileage may vary. I can guarantee that it will not help if you have blown the no walk home fuse.
