EGR bypass tube housing leak

[Rawze]

Just because the egr pipe is wet, does not mean that the egr cooler itself is leaking.

The joint you circled is in the egr piping. If that piping has been blocked off then it is prone to collecting moisture, depending on where a block plate was installed. The seepage could simply be moisture buildup and not coolant at all.

If you want to check if the egr cooler is leaking then this video shows roughly how to do that...





-- The bigger concern is the "delete" program itself. Who did this programming,.. and If you have not already, you need to get the program properly reviewed. It does not matter how much you think it 'runs ok".. because these engines will slowly eat their own guts out with bad delete programming, all while the truck owner swears that it runs great.


Also, in the photo that shows the whole side of the engine.. it is very evident that you have valve guide problems. The #4, #5 and #6 ports are covered in OIL,.. not coolant.

lastly.. you need to be 110% SURE that the exhaust is as free-flowing as possible. - A lot of these clown who "delete" these trucks will not do this properly.. they make half-arssed some hioles in the elements or don't hollow out the SCR properly,.. and all kinds of other horrible things instead of making ALL 3 of the cans 100% bare to the metal like they are supposed to be. - If this was not well enough then it will make higher than normal heat and back-pressure in the exhaust system and at the engine itself, causing gasket leaks, turbo failures, and all sorts of other engine problems.