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Old 11-26-2020, 11:43 AM   #15
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Originally Posted by whalepirot View Post

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!)

Attachment 308011

Attachment 308012

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!
Attachment 308013

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.
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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Old 11-26-2020, 11:53 AM   #16
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Thanks, Brett. I'll take a closer look, with added perspective. I was surprised by the amount of cooling air passing over the area after my work.
2007 Alpine SE 34FDDS + Cherokee Trailhawk
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Old 11-26-2020, 12:08 PM   #17
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Both check for prior damage AND verify that you have at least 2" clearance between anything engine mounted to "fixed parts" of body and suspension.
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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Old 12-03-2020, 05:54 PM   #18
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Location: Cincinnati, OH
Posts: 259
All I know is that I replaced all of my blue hoses.
Yes, it's tight but I did it from underneath and with the bed up.
It is not that hard. I also had clamps rust and brake.
I carry 4 extra clamps -- get them from NAPA
HPS Stainless Steel Spring Loaded T-Bolt Hose Clamp SAE 108 for 4" ID hose - Effective Size: 4.25"-4.57" $7.50 each
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Old 12-11-2020, 03:19 PM   #19
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Don't overlook that he said CONSTANT TENSION clamps, not screw type.
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hose, turbo

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