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john ross 03-05-2013 08:16 AM

holiday rambler
cummins isc400 exhaust manifold leaks

emoney 03-05-2013 08:44 AM

John, are you having issues with your exhaust leaking? Is there a specific question that someone can answer? Welcome to irv2, by the way.

Clayobx 03-05-2013 08:53 AM

John, welcome. You should post this question on the Cummins owner forum. Many helpful folks there with great information. :thumb:

slickest1 03-05-2013 05:42 PM

ISC or ISL ? My ISC manifold cracked and had to be replaced. Apparently it is a common problem along with gaskets and broken studs.

Gary RVRoamer 03-06-2013 09:54 AM

The ISC engine does not come in a 400 hp version. If you have a 400, it is an ISL. If it is an ISC, it is somewhere in the 330-380 hp range, depending on year and engine configuration.

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