Chimes and diesel smell in cabin 2012 dmax - Chevy and GMC Duramax Diesel Forum
11-16 LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 3 (permalink) Old 11-21-2012, 04:30 AM Thread Starter
Join Date: Sep 2012
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Chimes and diesel smell in cabin 2012 dmax

Hi folks, I have a 2012 GMC 2500hd Denali with about 8K on the clock. Truck is stock and two days ago it first did the following;

Chime, chime...30 second break....chime chime....and then diesel smell in the cabin...

It did this again yesterday. Both occurrences were while driving; first at highway speed, second at around 40 mph. No notices at all on the DIC.

Any ideas?

Thanks in advance for any thoughts and everyone enjoy a great Thanksgiving!
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post #2 of 3 (permalink) Old 11-21-2012, 09:05 AM
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Take it to your dealer and have them check for stored codes. You paid for the warranty, use it. Sounds like you have a leaking downpipe , there is a TSB on this issue that the dealer will perform, usually just a misaligned pipe.

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post #3 of 3 (permalink) Old 11-21-2012, 01:07 PM
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Happy Thanksgiving to you as well, DenaliHDDT!!! I would have to agree, since your truck is a 2012 and only have about 8,000 miles on her, you need to get it into the dealership.

Michelle, GM Customer Service

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