Its the EBS and they did take it out of service cant rember the flash number. That is what i did is take it out and put my pyro in there its seem to work good.
In Diesel Power mag, the guys at Banks drilled the manifold on the truck while it was running to blow out the shavings. They do this as normal procedure, so I don't think the smaller shavings that fall inside will do much damage, if any.