Air Leak, 2004 Win. 40AD

[Big Bear]

2004 Winnebago 40AD has developed a leak on trip from San Diego to Seattle. Air always shows it is up but started loosing preasure on rear gauge when shut down, took a few min. to come up after restart. After arriving in Washington I foud that the red & green lines at left side of engine compartment had rubbed although every thing was tie-wraped down. The green line rubbed thin enough that a small hole was blown in it. Temp fixed with tape which slowed leak to minium with engine off.
Next stop to Freightliner for repair. Has any one else seen this?
If not you might want to check your lines anyway.
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Vern in Duvall, Wa..

2004 Vectra 40 AD Cummins 350 W/Banks power package
2004 PT Cruiser, GT, Turbo, w/5 speed
Blue Ox Avanta 3 & Blue Ox tow plate W/Brake Buddy
Good Sam, long time Thousand Trails, & considering FMCA

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[Big Bear]

2004 Winnebago 40AD has developed a leak on trip from San Diego to Seattle. Air always shows it is up but started loosing preasure on rear gauge when shut down, took a few min. to come up after restart. After arriving in Washington I foud that the red & green lines at left side of engine compartment had rubbed although every thing was tie-wraped down. The green line rubbed thin enough that a small hole was blown in it. Temp fixed with tape which slowed leak to minium with engine off.
Next stop to Freightliner for repair. Has any one else seen this?
If not you might want to check your lines anyway.
Pictures here, copy and paste this link into your browser:
http://share.shutterfly.com/osi.jsp?i=EeANmTJo0cuHD0Y



Vern in Duvall, Wa..

2004 Vectra 40 AD Cummins 350 W/Banks power package
2004 PT Cruiser, GT, Turbo, w/5 speed
Blue Ox Avanta 3 & Blue Ox tow plate W/Brake Buddy
Good Sam, long time Thousand Trails, & considering FMCA

If the ˜View album' button doesn't work, copy and paste this link into your browser:
http://share.shutterfly.com/osi.jsp?i=EeANmTJo0cuHD0Y

[vicsryd]

Had similar symptoms but a different problem. Found a bad fitting on a green line in the bundle up front under the brake pedal.

I have a CAT w/ rear radiator and can't see the lines without getting underneath. I'll check it out this weekend.

[John_Canfield]

Welcome to the forum Vern! I wonder if the routing of the air lines is unique to the Cummins ISC. I have a 2005 40AD with the Cummins ISL. I'll take a look - thanks for the heads up.

--John