regen

[Jeepstang]

Usld

My understanding is that the only fuel on the market today is ULSD. They started phasing it in at least 9 months ago and I doubt that other than off-highway fuel, you couldn't buy the wrong fuel if you wanted too.

I was told at this time that only 80% of the stations need to sell ULSD

we have a chain here called free state and they only are selling low sulfer fuel

I also checked some other generic stations and they are still only selling low sulfer fuel you need to be very careful when reading the labels they are easy to confuse some say required for 2007 and later and some read this will damage the 2007 and newer vehicles. I also found out today that based on my VIN# there is a flash available for it. Emisions Pressure Monitor (DTC-P0471) that could cause your engine light to come on. it will need to go to the dealer for the flash since it works off of their wireless network and the star system. I have not had any issues as of yet.

 

[DEickhoff]

JJurgrau--How did you find out about the flash for your truck? Before I pick up my truck later this month/early next I want to make sure the dealership updates the truck to the latest flash as it will be spendy and hard (ferry trip and a 500 mile drive) to the nearest Dodge dealership.



Thanks



dawna

 

[KWAYNE]

I have every receipt of fuel purchased since the truck was new & it has never had the wrong diesel put in it... Don’t fool yourself into thinking its the diesel, I filled up at shell after they replaced my PDF, computer, sensors, & did the reflash & after 100 miles the engine light was back on. . I have put nothing but 15 in it since new. .

 

[TConnolly]

My dealer got the "Fix All Software update this morning and is waiting to install it as soon as the TSB with the instructions becomes available, it was expected today but was not available at 3pm eastern. Hopefully tomorrow am!



I'm going to post this in several threads as, a lot of inconsistent information is circulating.



The 6. 7L PCM gathers information from sensors before and after the DPF, calculations are preformed using that information along with idle time and duty cycle to determine when to go to 80% full, at 80% regen is triggered and will occur if the vehicle meets the proper conditions, If the conditions are not met and the vehicle reaches 100% full the PCM de-rates the engine and dealer service is required.



Basic information you need to know to understand why we're having problems with our oil change interval and DPF. Duty cycle is calculated and recorded in duration and percentage (25% of the time at 90%, & 15% of the time at 40%, & 60% of the time at idle). Idle is measured at 10% or less throttle pressure.



Common sense dictates that city driving would account for more idle time than highway, Not true because of the torque our engines make they require little peddle to hold Hwy speeds and register high idle time.



High idle time is considered extreme duty and triggers the oil change interval and regen cycle.



In my case the DPF was never full and the oil was not bad at 2k / 3. 4K / 7. 5K, the PCM just thought it was! Last week when TSB 18-033-07 was loaded in to my PCM and a manual burn was preformed it only lasted about 50 miles.



The new software is suppose to address the original issues and should cure the problems that we are experiencing.



As mentioned in a previous post suggesting that regen will occur at idle, do not confuse idle (10% or less throttle) with standing still. Use common sense if the regen cycle occurs standing still you could catch the grass on fire and rune your day! If you are old enough to remember the high number of police cruisers that burned to the ground while parked on the road side when gas engines first got catalytic converters.



This information is provided based on my research and my conversations with dealer service personnel, regional Reps and STAR tech’s. I believe the information given me is true, ultimately time will tell.

 

[TKeeler]

Regeneration of DPF

Check out the link here from Cummins. Is a document on and about the DPF and regeneration cycle. Some good information.

As for the fuel if it is not green is not ULSD, there is LSD still out there, some plants are still producing it. Here is Cal. there is only USLD as of Jan. 1, not sure how many others have made the switch. Check that color before you filler-up!

I have been hearing to as well, don't be gentle on these motors, run them the way they were made, Strong.



http://www.fleetguard.com/files/aftertreatment_training.pdf

Very good information JS & TC. So if our trucks are set up as described then it sounds like 'Passive Regeneration' takes place anytime the exhaust temperature is high enough (but it doesn't say what that is) and that 'Active Regeneration' requires 15-20 minutes and it doesn't have to be continuous. Now that is completely different than the 45 minutes of continuous driving at 1800-2000 RPM that has been being discussed. Someone needs to come up with something that will tell us when a regeneration is taking place and whether it is 'passive' or 'active'... the lack of information on this subject from Dodge is creating a lot of mis-information. Most all of the owners of these trucks including myself want to know what is going on and why... we don't just jump in the drivers seat everyday and hope and wish that everything is happening automatically. I for one want to know why something is or isn't working. I guess you could say I am one of those why?, why? & why? type guys.

 

[sag2]

You can regen the new Jeep 3. 0 diesel when stationary, but as far as I know they pulled the ability to do it on the Dodge Cummins application. If you read the new TSB today 18-033-07 Rev A, it says to set the manual regen up and then drive it for 45 minutes. It even pays the dealer to drive it, which I think is a first.

 

[Wolfy]

The lack of information is what is hurting right now and no one seems to know where to turn to get it. Dawna

Dawna,



Read "Aftertreatmen", and DPF Regen" segments at this link:



http://www.cumminsfiltration.com/en/services/en_interactive.shtml



This and other info I have gotten from other sources makes clear how the Regen works, but I find no specific reference to the possibility or detailed procedure of "at idle" Regen for these engines.



"Active regen" as described in the info would seem to be the method, but what RPM, time, etc. , or whether other procedure is involved is not discussed.



For other general encouragement, and additional note to you, see my last post in "Encouragement, please?" thread.



Gotta run, picking up truck today/tomorrow.

 

[DEickhoff]

Very good information JS & TC. So if our trucks are set up as described then it sounds like 'Passive Regeneration' takes place anytime the exhaust temperature is high enough (but it doesn't say what that is) and that 'Active Regeneration' requires 15-20 minutes and it doesn't have to be continuous. Now that is completely different than the 45 minutes of continuous driving at 1800-2000 RPM that has been being discussed. Someone needs to come up with something that will tell us when a regeneration is taking place and whether it is 'passive' or 'active'... the lack of information on this subject from Dodge is creating a lot of mis-information. Most all of the owners of these trucks including myself want to know what is going on and why... we don't just jump in the drivers seat everyday and hope and wish that everything is happening automatically. I for one want to know why something is or isn't working. I guess you could say I am one of those why?, why? & why? type guys.

I am also one of those folks who want to know the why of things. This is why I posted earlier that the lack of good solid information is hurting us when it comes to this regen/DPF issue. Dodge/Cummis could have saved themselves a lot of headaches and phone calls if they had just come out with information a lot sooner they what they are doing now. It seems they love to keep everyone in the dark and it is only through customer problems that information is slow in coming. I surely hope the new TSB that is supposely coming out soon will fix most of these DPF issues.

 

[BBeck]

Greetings all:



I picked up my truck from Dishman Dodge on Tuesday afternoon. Very happy with it and wanted to quickly share my observation of the regen. While driving, my EGT(pre-turbo) would hover around 900-1000 degrees. Then about every 20 minutes or so, it would move up to almost 1400 degrees for about a minute. Then go back to the 900-1000.



I believe this is the passive regen. discussed earlier.



The 45 min reference is when the DPF is 100% clogged or full and this step is one way to clean it out.



I will post pictures and more observations later today.



Brad

 

[chazj]

"While driving, my EGT(pre-turbo) would hover around 900-1000 degrees. Then about every 20 minutes or so, it would move up to almost 1400 degrees for about a minute. Then go back to the 900-1000. "



Can you order an EGT guage (factory) with the new truck?

 

[TKeeler]

Greetings all:



I picked up my truck from Dishman Dodge on Tuesday afternoon. Very happy with it and wanted to quickly share my observation of the regen. While driving, my EGT(pre-turbo) would hover around 900-1000 degrees. Then about every 20 minutes or so, it would move up to almost 1400 degrees for about a minute. Then go back to the 900-1000.



I believe this is the passive regen. discussed earlier.



The 45 min reference is when the DPF is 100% clogged or full and this step is one way to clean it out.



I will post pictures and more observations later today.



Brad

Congrats on the truck Brad... can't wait to see some pictures.



If Dodge would just give us some information on the regen we could all stop guessing. Does anyone have the Dodge factory shop manual on this engine and truck application... does it say anything about the regen system? There has got to be some 'if this then this' logic to this system that is being kept a secret. #@$%!



I just turned 2300 miles this morning on the way to work and have yet to see any warnings or check engine lights (knock on wood). I am pretty confident that the fuel I am getting is the best ULSD available.



It almost sounds like some temperature monitoring before and after the DPF might be in order here to know whats happening when. Anyone have any idea of the maximum temperatures we would be looking at?

 

[BBeck]

I believe JebH was going to purchase the manuals.



JebH?

 

[TDRadmin]

Issue

It looks like several of you have already found this information out, but I will post a confirmation of the resolution here.



Steve St. Laurent, Webmaster, brought the discussion of and increasing interest in the issue of regeneration and clogged Diesel Particulate Filters (DPF) to Robert's attention yesterday.



Robert followed up on this issue with one of his contacts at Chryser. In this instance, he was pleased to learn that a solution is forthcoming. He would like to give you a date to go along with the "forthcoming" comment, but knowing how the corporate environment works, he will refrain. Let's just say the ECM flash should be available shortly.



Currently, the regeneration process works on a timer. The reflash/reprogram of the ECM will have the regeneration process work on timing as well as exhaust pressure differential as measured by pressure sensors before and after the DPF.



This reflash should resolve the issue.



Hope this helps.



Robin

TDR Admin

 

[TConnolly]

TSB# 18-033-07 Rev A

Up-Date!



Yesterday June 13, My reflash was completed "TSB# 18-033-07 Rev A" and the dealer drove my truck again for the regen. Star Scan did not show the regen count down (dealer drove 384 miles this time). The dealer Tech called Cummins again this morning and was told that the sensors show that no regen is needed at this time, so no count down occurred. Cummins thinks I'm cured!



As of now I have my HP back and am running great, Time and Miles will tell!

 

[Sky]

Up-Date!



Yesterday June 13, My reflash was completed "TSB# 18-033-07 Rev A" and the dealer drove my truck again for the regen. Star Scan did not show the regen count down (dealer drove 384 miles this time). The dealer Tech called Cummins again this morning and was told that the sensors show that no regen is needed at this time, so no count down occurred. Cummins thinks I'm cured!



As of now I have my HP back and am running great, Time and Miles will tell!

Is this the new one everyone was waiting for to come out and what Robin was talking about?

 

[Jim Potteiger]

I bought a 2007 6. 7 with the 68re transmission. My wife and I took a break in trip of approx. 600 miles. I installed a pryrometer and boost gauge. I drove between 55 and 65 mph. My mileage was between 15 and 16 mpg. The pryrometer indicated 900 degrees while traveling on level ground. When the exhaust gas would go into a burn cycle the temp. would go to 1200 degrees and stay there for approx. 10 miles. Once the burn cycle was complete the temp would drop back to 900 degrees. I would guess the burn cycle would happen about every 50 to 75 miles and last for approx. 10 miles. The truck ran great and the exhaust brake works great.

 

[BBeck]

I bought a 2007 6. 7 with the 68re transmission. My wife and I took a break in trip of approx. 600 miles. I installed a pryrometer and boost gauge. I drove between 55 and 65 mph. My mileage was between 15 and 16 mpg. The pryrometer indicated 900 degrees while traveling on level ground. When the exhaust gas would go into a burn cycle the temp. would go to 1200 degrees and stay there for approx. 10 miles. Once the burn cycle was complete the temp would drop back to 900 degrees. I would guess the burn cycle would happen about every 50 to 75 miles and last for approx. 10 miles. The truck ran great and the exhaust brake works great.

I had the exact same experience with my truck coming back from Dishman Dodge, though my temp is closer to 1000 on level ground. Driving on a slight downgrade, it would drop to 600 degrees. I'm driving back to Spokane on the 23rd to visit family and attend the arena football game. Can't wait to reach the 1000 mile mark so I can start towing and let the engine "settle".



I bet it was a fun trip!

 

[sag2]

Is this the new one everyone was waiting for to come out and what Robin was talking about?

Yes, this is it. They also issued an RRT for any trucks unsold. So if your dealer is on the ball and you purchased after yesterday, your ECM should have been updated.

 

[BBeck]

sag2:



Will or should all '07. 5 trucks have the flash done or only those experiencing issues?



Thanks and thanks for jumping in and providing your perspective as a tech, greatly appreciate it!



Brad

 

[sag2]

The RRT is for ALL unsold trucks. If you have had your truck get the flash done as soon as you can.