Originally Posted by whalepirot
Good news. bad news. I'm not proud, just learning all about my 1st DP. Being concerned that perhaps the intercooler was the issue, having had the radiator, etc. R/R'd, then I recalled the Pop-WHoooosh sound at failure; like a hose failing.
The 6" long 4" dia. hose fwd of the intercooler tricked me, as it was so pliable, I thought it was ripped. Close inspection after wrestling it out showed it orange
and okay.. drat- wasted effort.!
Having read many threads about elbow hoses, I looked and found it, driver-side of Cummins, hidden by fallen compartment insulation (Yaay, another project!)
Pics show rear of coach, then a look inside to the site of the elbow hose, I t was somewhat melted to the metal hoses on both end, not rare, and I finally sliced one end to wrest it from its "home". Yup, blue
hose; the lo-temp one and kinda shot!
No part number on it, so I'll have to re-find it in a posting, and order.
Looking at your second picture, it difficult to tell if you have clearance between where that hose fits on the 90 degree coming off the turbo and the body shelf, remembering that there is a little movement there as the engine moves slightly on the engine mounts.
On our 2003 38FDDS, there was NOT sufficient clearance and contact took out not only the hose, but also that 90 degree AND the compressor side of the turbo.
If there is even a possibility that you have an issue, just remove the clamp from turbo to that aluminum 90 degree to which that hose is attached. Verify that the joint is "air tight".
PM me your e-mail if you want pictures-- an expensive fix.