Regen Question
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Senior User
Joined: Nov 2010
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From: Minneapolis, MN
Regen Question
So I was driving down the road today and my truck started running weird! I actually moved into the slow lane just in case it was going to die. About 30-45 seconds later my truck went into regen. Is this something others are experiencing?
Rather Be Floatin
Joined: Oct 2005
Posts: 2,468
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From: Marble Falls, Tx.
The only way I can tell that mine is going to regen is if I see the quick message on the display and then the fuel mileage gets really crappy. I can always tell when its done because the mpg's go back up. Never experienced it running wierd before the regen??
Lead Driver
Joined: Jan 2010
Posts: 6,600
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Sometimes although rare, my engine suddenly sounds like a 6.0L when it enters active regeneration.
I don't know what causes this other than the increase of fuel.
Active regen actually begins about 30 seconds before the factory message is reported on the info center.
I don't know what causes this other than the increase of fuel.
Active regen actually begins about 30 seconds before the factory message is reported on the info center.
Post Fiend
Joined: Jan 2009
Posts: 6,521
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From: Greenwood, SC
Me too, actually sounds like a diesel for a few seconds. I like to turn the radio off and savor it when I catch it happening!
Senior User
Joined: Dec 2008
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The only thing I've noticed on mine when it goes into and out of regen, is like a quick "shudder"/"stutter" less than a one one thousand second full count. That and the instant fuel economy plummets-*
Side note- I think it's funny how many of us (myself included- so I'm not pokin fun) are fixated on the fuel economy durring regen. I used to get all bummed about it ruining my avg economy per tank when it ran a regen. But have chosen to welcome the regen; because the economy tends to slowly decline as the truck is approaching the point when it needs a regen, then improves quite a bit (comparatively) on the instant economy indicator.
Also I know the indicator is often referred to as the "lie-o-meter" bu I have to say, I believe it to be nearly as accurate as hand calculated- here's why; when you go to the trip odometer, the display shows, miles, time, avg economy, and gallons used. So far the gallons used information has been within .2 (2 tenths) of a gallon at every fill-up. I believe that's an acceptable margin of error, because most of that .2 gal difference probably is more related to the way I pump, and how many times I click the nozzle after it clicks off the first time.
Side note- I think it's funny how many of us (myself included- so I'm not pokin fun) are fixated on the fuel economy durring regen. I used to get all bummed about it ruining my avg economy per tank when it ran a regen. But have chosen to welcome the regen; because the economy tends to slowly decline as the truck is approaching the point when it needs a regen, then improves quite a bit (comparatively) on the instant economy indicator.
Also I know the indicator is often referred to as the "lie-o-meter" bu I have to say, I believe it to be nearly as accurate as hand calculated- here's why; when you go to the trip odometer, the display shows, miles, time, avg economy, and gallons used. So far the gallons used information has been within .2 (2 tenths) of a gallon at every fill-up. I believe that's an acceptable margin of error, because most of that .2 gal difference probably is more related to the way I pump, and how many times I click the nozzle after it clicks off the first time.
Postmaster
Joined: Sep 2006
Posts: 2,598
Likes: 5
From: Maryland
It is somewhat common, but I believe it is related to fuel quality. Running on the same source of fuel, I do not have this when using a good fuel additive. It was bad before I started using additive and sounded much like detonation in a gas engine. Ironically I ran out of fuel additive prior to my last fill-up and voila the whole experience came back yesterday when I had a regen!
Senior User
Joined: Nov 2011
Posts: 217
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From: Fox Lake, WI
Regen - stutter
I noticed yesterday driving home from work that my engine stuttered, seemed like it missed a few beats - enough that I started pulling over and my Chevy Diesel owner friend asked whats up? I had time to say the engine started missing and then got the Regen message. So it does seem to run weird for a bit. He of course said his never does that and he never heard of a regen. I beleive him. This engine is definitely different. So far I love the truck and the power when pulling 7,000lbs, but it does seem to have lets call them idiosyncracies.
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Senior User
Joined: Nov 2010
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From: Minneapolis, MN
Thanks for the responses guys. I was not sure if I needed to take it in but it sounds like it is somewhat common. I may try a different addative and see if that makes any difference. 11 below this morning when I hit the road....why do I live here? LMAO!
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