Exhaust filter 100% full weirdness

[TRAMPLINEMAN]

Ok, for the last two weeks I’ve been having issues again with this message popping up. I’ve come to realize that I only have this issue when it gets cold out. From last spring when it warmed up to two weeks ago right before it cooled off, not once did this message show up. Now, when it’s around 20 degrees and colder, this message shows up every time I start the truck, and I mean every time. I start the truck in the morning and take off. Within a mile, the message comes on. I drive the truck to where I’m going and the regen completes at 70% before I get there. Or, I can drive the rest of the day without turning the truck off without any problems. I experimented with this for the last two weeks. When the regen completes, I immediately pulled over and shut the truck off. Start the truck up and the 100% full message comes on and goes thru the regen process again. The truck will do this over and over again. Any one have any ideas what’s going on?

 

[Wayne M.]

If it were mine, I'd blow out the DPF differential pressure sensor tubes. Or if you have the ability to force a full manual regen with a scanner, etc, do that and learn/ monitor the DPF diff readings, and watch them.

 

[TRAMPLINEMAN]

I don’t have the ability to force a regen. Soooo, where would one find the DPF differential pressure sensor tubes?

Also, why is the regen complete at 70%? It’s done that since the beginning. It’s never gone lower than 70%.

 

[Wayne M.]

I don’t have the ability to force a regen. Soooo, where would one find the DPF differential pressure sensor tubes?

Also, why is the regen complete at 70%? It’s done that since the beginning. It’s never gone lower than 70%.

If you know where the actual DPF is in the exhaust system, you'll see small tubes before and after it. Those tubes will come together and lead to one sensor. What it does is compare the back pressure before and after the DPF. This is one of the factors used to determine how loaded with soot it is.
It's possible for the tubes to be clogged and give a false reading. This could be why you're showing a 70% load after a regen. It's looking for certain backpressure readings and can't get it.
Have you been to a dealer for this issue?

 

[TRAMPLINEMAN]

Ok, thanks. Yes, I brought it in last winter for this same issue. Was told I need a new DPF and mine was no longer covered under warranty. That was about a year ago.

 

[Newsa]

If you know where the actual DPF is in the exhaust system, you'll see small tubes before and after it. Those tubes will come together and lead to one sensor. What it does is compare the back pressure before and after the DPF. This is one of the factors used to determine how loaded with soot it is.
It's possible for the tubes to be clogged and give a false reading. This could be why you're showing a 70% load after a regen. It's looking for certain backpressure readings and can't get it.
Have you been to a dealer for this issue?

The 70% threshold for halting an active regen is programmed into all 2013-2018 Ram Cummins. Never heard of anyone on this forum or the other forums getting an EVIC screen that reports anything lower than 70%.

My thinking is that a 70% soot load is perfect to create conditions for passive regen????
Seems logical to me that a more than 50% soot load and partial restriction/pressure would help hold the heat in to set off spontaneous burn of collected soot.

Might also be that they don't want to load the oil sump with too much fuel blow ny. Active regen (too much of it) can cause fuel dilution of the oil.

Additionally, the truck might do some additional active regen that is not reported on the EVIC. I don't know the exact number of miles that it does it, but I think Bob4×4 once suggested it will go through 1 or 2 regen every 1000-1500 miles even if no pressure readings trigger one.

About your truck reporting active regen, mine has done what you say here (active regen on consecutive trips) twice (or maybe thrice?). And I had to have the dealer force a regen once. But other than that it is always 500-2500 miles between EVIC regen notifications.

These are my observations.

Might be that a forced regen (should be covered under emissions warranty) will help

 

[JR]

Have you had the T05 recall done yet?

 

[TCDiesel]

The only way to clean the DFP properly is Stationary Desoot (W/O Removal) it takes 60/80 minutes and use 2-3 gallons of fuel.... I do My Vehicles Spring/fall, I did another owners last Night , He was shocked at how long it takes, He waited and watched, He commented that he was standing 3-4 Away form the Exit pipe and the stink and heat alarmed him. I also updated all his modules (That the dealer that did the T05 claim they did). You just cannot get the DPF clean by driving, it works but a through clean Needs Stationary Desoot and WItech at this time is the only device to engage it .. A couple of tips, outside away form animals and objects, hopefully its breezy or windy , open Hood when temps are above 40* and 60-80 minutes.

 

[Newsa]

When the dealer did my stationary desoot (forced regen), it took the idle hours from 4 hours to 7 hours.

 

[TCDiesel]

It times out at 80 minutes the truck drops to idle after 80 minutes..and disengages , shutdown 10 minutes after that... But if the dealer did it. it was 80 minutes engage and 5.5 hrs figuring out how to get it functional.

 

[JR]

What's a ball park figure to do a stationary Regen? Labor plus....? Would a dealership actually perform one without any CEL or related problems?

 

[Newsa]

No it had only 4 hours (4 idle hours and 1570 run hours) accumulated over 4 years. Then after I got it back from the dealer, it had 7 hours. But it had been on 4 idle hours for a long time. So I suspect it was about to turn to 5 idle hours.

 

[Newsa]

What's a ball park figure to do a stationary Regen? Would a dealership actually perform one without any CEL or related problems?

The dealer will charge if you don't have a CEL associated with a code that indicates clogged DPF. I also had an EVIC message saying "ash in DPF" . They had to make a call to see if it was a warranty issue.

 

[TCDiesel]

If I like Ya, its $35.00. If I don't its $70.00. Stationary Desoot engage does NOT idle, it ramps to 1100RPMs. Make a call.. What...only 2 good techs in CA Sag2 and BoB4x4?

 

[TRAMPLINEMAN]

Have you had the T05 recall done yet?

Ok, I entered my vin on the ramtruck.com recall page and the T05 recall doesn’t even show up for my truck.

Here’s what’s complete and what’s incomplete.

Complete-
R23
R36
P26
P15

Incomplete-
T51
T25
R46

 

[JR]

The T05 doesn't replace the DPF but there is a flash along with the removal of the ammonia sensor along with SCR cat replacement. TC could definitely elaborate better than I exactly what the flash does. My 14 was part of the recall so I'm pretty sure yours is included as well if you've got the ammonia sensor

 

[Newsa]

If I like Ya, its $35.00. If I don't its $70.00. Stationary Desoot engage does NOT idle, it ramps to 1100RPMs. Make a call.. What...only 2 good techs in CA Sag2 and BoB4x4?

Sounds very reasonable. My dealer charges $40 ish for a flash ($35 +tax). But their hourly rate is high enough to bring it much higher.

You have to pay for your witech.

 

[Flash1034]

What scanner will allow me to perform a manual regen?

 

[Newsa]

What's a ball park figure to do a stationary Regen? Labor plus....? Would a dealership actually perform one without any CEL or related problems?

My dealer wanted to charge me $160 plus tax. But those rates vary from dealer to dealer. U had to remind them about the warranty. Then they illegally charged me $40. And I blew up their FB page with bad publicity.

 

[TCDiesel]

Yep... If you have connections about $3,200.00. Plus the Tech Account and Equipment changes yearly. Dealer pays just like everyone, FCA hand outs =0