[Hook'em_Horns!]

Oh, I’m all about preventative maintenance and had this been easily visible I may have noticed early on the signs of a potential hose failure.

The location of this tube/hose is not subject to any oil contamination; it’s above the manifold,
(90 degree tube with the yellow wire above it)


below the EGR intake/valve assembly and runs from the manifold to the EGR heat exchanger
(hose portion can be viewed from a step up, looking straight down from top center, between the turbo intake tube and EGR intake tube)


which in turn feeds coolant to the heater core at the firewall.

Exhaust in cooling…that would indicate bigger problems than this hose failure. Friction is not an issue, as it touches not a thing, although design/location may subject it to higher external temperatures than the coolant’s internal temperature. 5/8” heater hose…is there anything stronger to use in this location?

As to ease of repair, it wasn’t necessarily difficult but it was time consuming and NOT something done on the side of the road, IMO.

Remove the intake tube, Resonator, Turbo Mouthpiece (mine is the LMM mp, maybe not with the LLY mp), detach wire bundle atop the EGR intake tube (with white tie holding in pic above) and then remove this intake tube. Pull the hose clamp at the EGR heat exchanger, remove the bolt securing the tube and pull out the tube. Also a new ‘O’ ring will be needed, and I STRONGLY recommend rags in the open engine portals to eliminate creating a bigger problem with items dropped!

Had I been further from the shop than just a few blocks away when it blew, a tow would have been in order. Had this hose failed a few weeks ago during my late night turnaround run to Houston with Hurricane Relief supplies,


I would’ve been screwed. :moon

I would suggest adding a looksee to your under hood inspections at this area for a potential problem growing.