Mornin!

[Pops15z71]

I have a 2015 GMC I bought new in November of that year. 27,000 mi. No issues so far. Bone stock, no changes made yet. Other than a drop in mpg's, how can I tell when it's in regen? I had a 2013 that had 50k on it when I traded and I could tell when it would regen because the fuel mileage would drop.
I drive 22 miles to work 5 days a week and about 15 miles of that is at 70 mph. Very seldom do I tow anything and I idle a lot.
Thanks

 

[Whitetail Addict]

If it's like my LML you'll notice it'll idle higher (about 150 rpm's) and "push through the brakes" on a stop.

 

[NC-smokinlmm]

You need to hook up to a trailer during a regen and load it up to make some heat to burn out your dpf. Idling and no load driving will cause constant/short interval regens especially if your not letting a regen fully complete itself. They can time out if trying to take place and the truck is shut down multiple times. These diesels are meant to pull weight at speed and now they basically have to for proper exhaust treatment performance....

You can buy a edge cts monitor that will tell you when a regen Is taking place and how much soot load your dpf has in it. This allows you to plan around a regen and keep it rolling when one starts, I drive a short loop of I-40, it starts about 2 miles from my house. Loop is about 15 miles long, at 70 it burns it off the most efficiently so the whole regen process takes about 12 to 15 minutes. Not really a big deal, I just use the time to decompress a little...

 

[Pops15z71]

Regen

Thanks for your reply, I'll look into that monitor. I really don't want to do any deletes or tuning right now, so I'm looking for the best way to take care of it in the meantime. Hopefully I haven't done anything bad to it in 27000 miles.
Thanks again!

 

[1ATony]

Welcome to the site it's great to have you here

Tony

 

[swhalen]

Newbie wants to know what is a regen Thanks for your patience


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