mr. ed

Like many other owners of trucks with the 6.7L engine, my truck's CEL has been illuminated more times than it's been off (the truck runs very well, though). Repeated trips to the dealer have brought no lasting fix, although we may replace the turbo.....we've adopted a "wait and see" attitude, hoping D/C will come up with a solution. In the meantime, I e-mailed Cummins and received this reply, which reads in part:

Solution:
Thanks for your Email message. You have contacted Cummins, Inc. at our
Customer Assistance Center located in Columbus, Indiana. This is our
worldwide headquarters and has been our home since Clessie Cummins
founded the company February 3, 1919.

Edward, the turbo on your engine isn't new technology, infact there has
been a 6.7 liter engine produced by Cummins in Daventry England for a
while now. The engine they produced has, until recently, been used
mostly in industrial applications. We aren't aware of a problem with the
turbos on the Dodge ISB engines.

If you are producing less than 70-85% horsepower on a Dynomometer test
then something is wrong with the power plant. That isn't to say the
turbo, but it could include the turbo. If your truck seems to run and
pull fine, odds are it isn't a turbo problem and we would be wary of
replacing such an expensive part with such little knowledge.

One thing you may try is changing the duty cycle of the engine. If you
don't drive the engine at full power you may try getting the unit out
on the interstate or try pulling a heavy load for 30min to an hour.
What you would be trying to accomplish is coined a "Passive
Regeneration." That is when your aftertreatment starts to burn off the soot in your
DPF. Many of the other chassis manufacturers provide an "Active
Regeneration" switch. This is so that when the soot load in the DPF
becomest too high it can be regenerated in one place. Another practice would
be to try to cut idle times down as low as possible.

Because your product is warranted by Dodge it would be best to get all
of the above information verified to ensure that it matches the
information they have for their product.

Cummins designs and supplies the Cummins 6B5.9 and ISB 24-Valve turbo
diesel engines to DaimlerChrysler, however, DaimlerChrysler warrants the
diesel engine and truck completely, as a package unit. Cummins, Inc.
and authorized Service Providers cannot provide warranty coverage on
Dodge Ram trucks powered with Cummins diesel engines, since all warranties
are handled by the Dodge dealers.

(I'll leave it up to you experts to comment on this)....Thanks, Ed

2007.5 Dodge Ram 3500/6.7 CTD/SRW/SB/4X4/6-speed man/Big Horn Edition/16k Husky manual slider hitch

bigblock2stroke

That's Krap, but prolly what you expected, right?

We aren't aware of a problem with the
turbos on the Dodge ISB engines.

You can really just stop reading at the end of that sentence. Once I know I'm being lied to, my hearing/eyesight starts to fade.