Chevy and GMC Duramax Diesel Forum - View Single Post - 2020 Re-Gen?
Thread: 2020 Re-Gen?
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post #1 of (permalink) Old 10-30-2019, 08:33 AM Thread Starter
Join Date: Aug 2013
Posts: 8
2020 Re-Gen?

Whats up Duramax'ers? I have 600 miles on my 2020 GMC LP5. Driving home yesterday, I noticed a familiar smell of a Duramax in re-gen. The thing that has me scratching my head is the fact that I did not notice the engine idle up. My previous LML would have a noticeable high idle when in re-gen, but I did not see this on my tach or notice any difference during idle. Today, driving to work the engine produced the same smell (oil/rubber) so I am under the impression the truck is in re-gen mode. Maybe I did not pay attention, but what should the RPM's be when in re-gen and when not in re-gen? I also checked for oil leaks or debris that may have landed on the exhaust.
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