New Year....Same PROBLEMS! (GM Duramax LIMP HOME 4mph - DEF Fluid Quality Poor?)

Let's get 2023 started with another Diesel EMISSIONS problem.
This clean 2013 Chevy Duramax truck is derated to 4 MPH because the ECM is not happy with the DEF Quality.
Shop already replaced the failing NOx sensors and filled the DEF tank with fresh fluid. They ran the Service REGEN and the Fluid Quality Test which FAILED!
Let's fire up the Tech2Win and see why this beast is sick and what it takes to restore the DIESEL POWER :)
HAPPY NEW YEAR!
Ivan

[@soundman6241]

Government doesn't realize that the forced emissions requirements do not improve emissions if parts for these engines have to be manufactured, parts have to be shipped, mechanics have work on these trucks, and old parts are recycled or thrown away. We need to take a more broad view of emissions and carbon output over a lifetime of a vehicle not just the immediate end result. Ev's are a prime example for unaccounted emissions and carbon. Yes the vehicle is very efficient but the building and recycling are many times worse than the ICE vehicles

[@ojmbvids]

Took me a while to realise you were saying NOx sensors rather than knock sensors. I was so confused 😂

[@mrfishbulb7187]

Same here. Lol.

[@garymorris2857]

I always run KZbin videos with CC’s. Unfortunately, it wasn’t included with this video. Legibility and volume major issues on KZbin.

[@kerrylewis2581]

Three of my friends sold their diesel trucks and returned to gasoline engines because of emission repairs and downtime. All three had problems covered under warranty, but part availability delayed one for over six months. The dealer took it in trade; he now has one with the Godzilla engine.

[@ronfrance4041]

That’s why i still daily drive my ‘07 duramax, no def or regen crap, never seen a check engine light other than for glow plugs.

[@kerrylewis2581]

@@ronfrance4041 The older diesel vehicles must have a much higher resale value because of over-regulation

[@ronfrance4041]

@@kerrylewis2581 yup, they do now.

[@crbourret]

I got rid of my Ram with the Cummins for the same reasons. I also now have an F350 with the 7.3 Godzilla gas engine and have been very happy with it!

[@zenithperigee7442]

@Kerry Lewis, I've never owned a diesel but the majority of my negative experiences with gasoline vehicles has been the emissions systems. A family member launched the "parts cannon" at one of his vehicles trying to fix the repeat codes. On another vehicle which was nearly 20 yrs old, I had to replace a long section of pipe with the integrated CAT and an O2 sensor "fused" to the pipe yet the replacement had the wrong angle at the socket & flange. I had to cut it and use the factory socket & flange so it'd finally line up and seal properly... 😑 On another vehicle it seems like every other week to a month I would get, "check gas cap, small leak, large leak, catalyst inefficiency, incorrect purge..." etc., yet after resetting the MIL a few times, suddenly no issues or codes have set for months & vehicle passed emissions testing with no problems. 🤔 It's absolute nonsense just how much of a headache and how much wasted $$$ has gone into repairing "emissions components" on modern vehicles compared to other components. And yet now they want to "GET RID OF ALL GAS/DIESEL ENGINE VEHICLES & GO ALL-ELECTRIC!!!" whilst all-electrics are still largely charging from sources utilizing fossil fuels which then is contrary to the very reason that the vehicles exist and then they have their own set of other problems.

[@blockbertus]

The broken glow plug could be (one of) the reason for the cat to be full. There are cars that do not run the regeneration cycle if there is a glow plug issue.

[@tam1381]

Seen that on many vehicles.

[@georgenice]

Me too.....!

[@kellyx57]

Yep, it probably won't run a regen with that glow plug fault. It's only a matter of time before the "new" DPF is clogged.

[@CrimeVid]

Trouble with big diesels is they can take twenty minutes driving to get to “normal temperature,” with 75 minutes regen on top of it, driver is not going far that day, wait ! can you take static regen out of a commercial driving day ?

[@lvsqcsl]

I knew that. I also know when these systems came out (I think it was 2008, at least on Ford) the vehicle could go to regeneration while idling. I think there was a reflash done so the vehicle had to be moving at least 20 mph before regeneration occurred.

[@kastooMcFry]

Complicated system. Thanks for taking us along, Ivan.

[@robertmedina6875]

I love the diesel videos Ivan! I personally have never had experience with diesels so it’s nice to see some of the information on the channel! Good job Brotha!!!

[@markt5426]

Great work Ivan, As always your expertise sorted out the emission problem.

[@arcadeuk]

That glow plug fault needs fixing immediately, the DPF will not do an active regenerate with a glow plug fault present, so the owners going to be having problems with a clogged DPF/SCR

[@JoseSilveira-newhandleforYT]

The emission control systems for diesel engines have become so complex (and picky) that one wonders if it's worth to have a diesel vehicle these days - complex troubleshooting and lack of parts make for expensive repairs and significant down times. I'm impressed how well you navigate through these cryptic procedures. Great that the Duramax is back on duty :-)

[@pootthatbak2578]

Gasoline engines too.

[@adotintheshark4848]

the overall plan is to get diesels off the road anyway, so to achieve this they are just making them more and more complicated. "Electric is the way to go", whether it works or not.

[@ehsnils]

All that trouble is why there's a market for "workaround" boxes.

[@lvsqcsl]

It just isn't the newer ones, either. I recently had an issue with my 2005 F-350. One day the truck wouldn't even "click." I posted online and a gentleman told me the fan clutch circuit under the hood was damaged and the body control module was holding out the starter circuit. Well, what kind of crazy crap is this.....I pulled the fan shroud off, the plastic conduit carrying the wires to the clutch had failed, dropped into the fan and got chopped up. Well, there's your problem, lady! You also need a special tool to remove that fan clutch. I have had EVERY problem you can have with a truck.

[@larrybe2900]

The phrase that will shake out is going to be "carbon neutral" in the end. The ICE is not going anywhere. Electric cannot sustain the rigors being asked of it. The average driver segment electric may be just fine but the sport job/work segment needs the ICE for as long as there is fuel. Strides are being made to utilize carbon captured from the air to make gasoline. Putting the cart before the horse by satiating the production greenies and not having solved the charging availability is making for less than stellar reasons to want to go electric. Social media is proving to be its own worst enemy.

[@scotts6503]

Had a 2016 Ford with the 6.7. Had the DEF heater go out under warranty with a 3 month wait for parts, then had 2 of the 4 EGT sensors go bad. After dealing with that and coming up on 100K miles, traded in for a gasoline truck. Now looking for a pre-2007 diesel to buy but around here (TX) they command a hefty premium. At least the body and frames last here and will just have to refresh the mechanical parts.

[@hightttech]

I'm SURE that the owner is positively tickled pink to spend $3500 (close??) to save the planet. He was last seen eagerly awaiting an autographed, 8x10 of Al Gore and accompanying "Thank You" letter.

[@kyletuttle9064]

Great job Ivan you keep teaching others.thanks.have a great new year.

[@PaulysAuto]

I had a 2012 Chev dually one time I went hours into it before I could get that Quality Test to pass....that era is horrible to get out of that lockout stage. Nicely done...I actually felt that sigh of relief once your warning messages were gone...totally understand 🤣

[@lvsqcsl]

Apparently, this guy lives in an area that requires emissions testing. I know people that have deleted this whole system. Makes me think twice about buying another diesel powered truck. I currently have 2 and they give me enough problems already. Great video!

[@Cetaneandpoontang]

I sold my emissions equipped trucks for older pre-emissions trucks. I have never looked back.

[@jimtwombly2109]

I have a 2011 LML Sierra and several years ago I had the same message appear on the dash. I took it to a GM dealer and I wondered why they had my truck running for so long, unattended in the parking lot, now I know. Fortunately my truck was still under warranty..I really enjoy watching your diagnostics. I had another incident pulling a fifth wheel back from Florida with the def system. The second time I limped to the dealer at 55 mph, fortunately I had parked the fifth wheel.

[@brianw8963]

Nice Work Ivan. As far as these def diesels go, no comment.

[@billb6899]

I've learned so much about auto diagnostics on this channel! Most of it is WAY above my skill level (but I'm gradually catching up) and I don't have a high end scanner or scope. Fortunately our cars are old enough that basic tools are usually enough. Ivan's methodical checking voltages, grounds, loose wires etc. still applies. Gives me confidence to keep after those illusive issues - have a plan, use logic, keep looking and sooner or later you'll find the problem. And with some proper tools, manual dexterity, and patience - fix it!

[@jeffreyfwagner]

It would be good if you did a summary at the end of the video to say what the cause of the problem was and which specific acts repaired the truck. Love your videos. As a retired automotive engineer I find today's tech a bit over the top.

[@jerrygundrum1]

Def and associated break down is why I bought my 2500 with a gas engine

[@rick5515]

That was a new one for me. Have zero experience with that system. Thanks

[@robjmorse]

Thank you, I learned a lot from that video.

[@pantherplatform]

Just replaced the worn out starter in my 2002 F Two Fiddy and fired it up in single digit temps and didn't have to check the def because it doesn't have any! Smells like pure freedom!

[@thomasbailey8306]

And this is why I will never own anything newer then a 2005 Chevy Duramax..LOL..HAHA. I will be driving with Antique plates on my truck before I own anything with that JUNK on..LOL..Great Video Sir...

[@AP9311]

Ivan, I just got tech 2 like the one on your laptop. As I just finished replacing the reductant heater and the DPF fluid as well. My friend had a problem with the filter in his 2015 Denali Duramax 6.6. The modules were so picky. He was so happy that i fixed it through tech 2 as it was only way to fix it. Great video Ivan! Many thumbs up 👍 👌

[@PineHollowAutoDiagnostics]

Tech 2 worked on 2015? I thought 2013 was last year of Tech2?

[@AP9311]

@Pine Hollow Auto Diagnostics that's what i thought too. But it did work. As the setup is pretty much same. Only difference is the engine code. Like LML, LMM and L5P. But tech2 is dumb as it wont see that.

[@renerivas3619]

Happy new year. Ivan god bless. You 👏👍

[@mikechiodetti4482]

OEM parts and OEM scanner. Good one Ivan.

[@lawman1995]

Great work Ivan! I deal with the same issues on semis every day. The older systems that used the nox sensors to check the def quality were such a pain to get the derate to clear at least on the HD side. These new systems are pretty tech friendly. We have a sensor in the def tank that checks the quality of the def ultrasonically and the nox sensors are only there now to check the base engine nox output for issues/egr flow control and check the nox conversion efficiency across the scr catalyst. The only thing I wish the manufacturers would do is get rid of EGR since all it is there for is to lower nox emissions, and control all of the nox with the scr system since it has advanced so much in the past several years.

[@PineHollowAutoDiagnostics]

Great info!

[@jamesguzmanii9812]

My Autel MP808TS was successful in performing those tests and getting the truck out of limp mode. Turned out the guy replaced his own nox sensors and pinched the def supply line causing the low quality. Every time he took it down to check quantity it would flow as expected but when he put it back it pinched off again.

[@roxanneabbott8424]

Another customer happy!!

[@mikecalvin1402]

Great work 👏 👍 👌 💪 🙌

[@howardiko7156]

The Tec ii will let you see resistance and current for each glow plug as well as the driver integrity. Number 7 seems to be under the fuel filter and might be hard to replace but worth it.

[@TheNestor75]

Nice video, i have 8 days working in a 6.6 def

[@renflo86]

Awesome 👏 video

[@seanwies6637]

Well done.

[@rjedro]

The license plate frame was pretty helpful.

[@davidharrison3173]

Good job!

[@jerryrobbins7256]

You are thorough

[@mikenonameneeded3485]

You know Ivan gets excited when he throws in a Hell Yeah. Haha

[@ethan6160]

I had a similar issue on my L5P with bad catalyst being the code. Resetting NOX sensors still lead to showing sensors as faulty as values jumped wildly and stuck high or low. This did not seem to affect seed limiting, but DPF reges dropped really low. While the NOX sensors were on backorder the DEF heater #2 in the DEF tank went bad. This did cause the speed redution warnings to start. Researching the codes present also led me to replace the DEF control module in addition to the tank as dealers had done that in addition to tanks for other's warranty repairs. After running the fluid quality test and resetting the NOX sensors again the NOX/SCR system started working fine again without replacing the NOX sensors themselves. I'm using the AutoEnginuity scanner. My truck did have one replaced battery and a corroded ground cable on that battery. I assume the previous battery had an event due to the corrosion and rust on the battery tray. I also had to reprogram the Glowplug module as it seems a low battery event can hose certain modules and you'lll need SPS2 to reprogram them. I had the truck 6+ months before the DEF/SCR issues so I dont think the module went bad from the suspected battery event.

[@clueless6559]

In Europe we have this crap on lots of cars not just large trucks , people still do not understand them and still buy the crap, we struggle too with aftermarket scan tools , the updates are often weak too, thanks for showing your struggles LOL

[@bmpn155]

Wow that shop got lucky winging an SCR at it without finishing diagnosis. Really should have tested the truck with the new NOx sensors in and DEF injector unhooked to verify sensors correlate with each other as well as making sure the DEF pump is able to maintain pressure during an injection cycle, a weak pump will cause this as well as a faulty new NOx sensor. Also I never say a DEF injector is good without testing it both cold and up to temp, they can do some crazy things when they get hot though it usually errs on the side of an internal leak which causes a reduction too high issue. They also should dig into the glow plug code (I'm sure it's the glow plug itself) so the truck can regenerate normally. If it is repeatedly attempting regens and aborting due to a fault it will bake that replacement SCR into oblivion in no time.

[@kevin9c1]

Does it run the glow plugs in regen?

[@bmpn155]

@@kevin9c1 yessir, they're also programmed to abort regens for all kinds of other reasons. Always a good idea to baseline everything engine related and make sure it's working properly in a situation like this to make sure the repair lasts and that the original cause of the fault was actually the part that got replaced.

[@_RiseAgainst]

Most important maintenance tip that a few diesel owners skip. You must idle through your entire 8 hr shift.

[@phprofYT]

:)

[@SkyTechLover]

If you have problems with Glow plugs you will have after a while DPF and exhaust problems. Glow plugs should work properly otherwise for sure you will have two problems the engine won't run properly cold conditions and the DPF won't be able to regenerate in cold conditions.

[@PineHollowAutoDiagnostics]

Glow plugs are just for cold start 👍

[@charliemagoo7943]

Glow plugs are only for smoke on cold start.

[@mister62085]

Like a rock

[@thebeardedone1225]

Mine did the same thing. Seems the guy working on it said these trucks, have firmware programming that once they pass the dpf inspection mileage recommendation threshold of 150 thousand miles, if a message for low def fluid comes up, the program makes it go into the limp mode countdown. If you get it into a dealer before it gets into shut down mode, it can be cleared by forcing a def cleaning cycle, which will cost you a couple hundred bucks. If you wait too long, a bit of reprogramming is require😮d.

[@weshawkins7165]

This is why I keep my 2000 Dodge CTD, none of this DEF garbage.

[@orkidorkid]

Hi Ivan, I think the thinktool pros can do all that. I was able to solve a similar problem using it... Thank you for your great videos !

[@mrfishbulb7187]

I'd like to upgrade to a Thinktool Pros, have you run into any compatibility issues?

[@orkidorkid]

@@mrfishbulb7187 I have been using it for more than a year now, I haven't encountered any issues yet. I even used it on a Mercedes and a range rover. It works great !

[@mrfishbulb7187]

@@orkidorkid Ok great, thanks.

[@weldingjunkie]

Watching now but I just has a f30 328D bmw same issue the SCR module was bad, I replaced it and programmed it. Was fixed after that. These systems are a pain

[@rickhobbs4875]

AC Delco glow plugs are cheap. I would replace it if I was doing the repair. Our 2012 had this code. Luckily, a DEF drain and refill and injector clean fixed ours. My SnapOn scanner took care of the tests/cleared out codes

[@Mattman2500]

Sucks these issues happen, but thus is exactly why I ordered a HD gasser.

[@zxtenn]

Ivan, i have a 2023 Tuscon and i was at the dealer getting a free oil change, anyway i overheard a customer speaking with a service rep about a CAT they replaced on a later model Elantra with over 100k, Its only 8 months old and the dealer won't cover replacement. I was outside and talking with the owner, he said it uses about 1 quart of oil between 800-1000 miles but seems Hyundai considers that normal but it's also contaminating the CAT so the owner is in a tough situation, the rep also told him if he gets an aftermarket one installed that will void any extended warranty he has. I never heard of a CT going bad in 8 months and NOT being covered especially with what the manufacturer considers 'normal' oil consumption. I did my 1st oil change at 2500 miles and then at 7500, didnt use a drop within the 5000 miles

[@RJon2006]

Great front license plate.

[@dustcommander100]

It amazes me how you sail thru those complex systems with their cryptic descriptions! I always spend a lot of time trying to understand what the statements in the scanner or troubleshooting guides mean. Seems like so many of the scanners are displaying a translation of something originally written in another language (like Chinese). Even the GM Tech2 info seems to be so abbreviated it's hard to follow.

[@pootthatbak2578]

You need to dive into the diagnostics like Ivan has..otherwise sit back and enjoy the show. I am trying to pick up the lingo and methodology, its hard. He has learned the language of diagnostics...because he had to

[@nickchannel5364]

You occupy a very important niche in car repair.

[@williampierce5615]

Check the wiring harness on drivers side. Frame area. I have found lots of problems with bad wiring.

[@jakemartin4305]

Worked on a 17 frieghtliner for a trash company scr nox effiency faults found DEF injector faulty (leaking Def) got better but no fix pulled filter and found DOC amd DPF filters where destroyed due to customer just running forced regens and reseting the system grabbed one from junk yard installed lasted 1 day and came back DPF and DOC 100% clogged had them cleaned found that air filter had never been changed was original 1 p.m. later truck ran like new lol these systems can be tricky sometimes to diag but if you understand how the system works you can fix anything 😁

[@ThePracticalMechanic]

I’ve seen several of these trucks with cat/scr codes caused by the exhaust fuel injector leaking fuel into the exhaust. Glad they were able to get a used unit. We waited months for a unit a while back.

[@HotRod-wv4vm]

Thanks Ivan. Was the check engine light ever addressed? I believe someone else asked the same question.

[@bertvisser6423]

DEF delete,works every time :)

[@robpeabo509]

It is a sad state of affairs when we are still seeing parts unavailability. DPF issues will become more of a repair we see on KZbin as vehicles with these systems age. Having said that, a 10 year old vehicle is not old! At least where I come from it isn't old. 160,000 miles (258,000km) is barely run in for a large diesel engine, well for Japanese engines. I don't know about GM engines.

[@phprofYT]

A Duramax that is treated well and serviced is good for at least 250k miles. Perhaps injectors at some point but should go to 500k miles if well used.

[@notsoserious0944]

Duramax is an Isuzu design.

[@justsumguy2u]

Exhaust fluid? Is tech getting to the point where blinker fluid is going to become a real thing?

[@kevin9c1]

I think you just wanted to go back into the ECM and check the limp mode level. But obviously it's good now.

[@tomtke7351]

The length, width, and breadth of tools/toys AND calibrated/educatable technicians is enormous. This ain't your "grandfather's" abilities.

[@happy543210]

Nothing says "america" like a chevy truck.....built in canada with mexican and chinese parts!

[@fredsalter1915]

Darned ICE...... EDIT: looks like the THINKPRO is lacking.. That sucks...

[@rickchowsr2532]

Great vid I’m NOX’D out. 🤣

[@bltoth1955]

Hey there, Does the first code suggest it is the most significant? A good starting place in your troubleshooting?

[@lanwickum]

Autel IM608 has done tests and got rid of that for me.

[@willispower9493]

I have a Snap-On Verus Edge and it works fine on the Duramax.

[@ednewell1847]

Mine has all these functions as well, just have to make sure you are running 20.2 or newer

[@kthwkr]

Ivan: Can you please fix the McDonalds ice cream machines? I'm sure you could figure it out.

[@PineHollowAutoDiagnostics]

You probably don't want to eat what's inside of those machines 😂

[@baxrok2.]

Reducto completo! What a joke. Thanks Ivan!

[@dasouth1978]

I hate p20ee, got 2 in my shop atm, 3 more tomorrow. (Belgium) On PSA vehicles you don't get the speed reduction, you'll get a crank no start if you don't look at the 2400 km warning.

[@calholli]

Just hearing "exhaust fluid" makes me chuckle.. It's right up there with blinker fluid, except it's actually real. What is this simulation I'm trapped in? lol

[@noelhernandez5016]

Indirect injector also goes bad and causes this issue with no dtc related to the indirect injector

[@lanwickum]

I have had bad brand new DEF. Had to put in new good DEF to remove that code. Needs to be at least 30.5%? Urea.

[@bad05ford]

I'm sure the customer is thrilled with spending over 5k because of an unreliable emissions system component. This crap is why people delete the trucks.

[@MrAmorti]

Trouble is then you have a*holes rolling coal through the city, historic and other buildings turn black, kids get asthma, bla bla. The concept of diesel exhaust filtering is good, even if the execution needs work. Tbf though, this is a 10 years old salt belt truck.

[@MattyEngland]

Diesel engines should stay where they belong, in trucks and buses etc. Petrol/gasoline is a far superior fuel for smaller vehicles the size of a car

[@bad05ford]

@@MattyEngland diesel has more energy than gasoline per unit. They work much better than gasoline engines when pulling heavy loads and have been more efficient in small vehicles. The emissions systems are killing them, dirty egr and massive aftertreat systems have reduced the reliability and efficiency.

[@MattyEngland]

@@bad05ford Only a tiny fraction of small vehicles are carrying heavy loads or towing. If every car on the road was a diesel with no emission systems, the air quality in our cities would be as bad as China. As for energy density it depends on the unit of measurement. Petrol has a higher energy density in term of MJ/kg, but diesel has more energy in terms of energy per litre. The majority of the mpg gains are actually due to the higher thermal efficiency of a diesel engine.

[@bad05ford]

@mattbaber1980 dirty sooty egr is a problem aa well aa the low quality components in the aftertreat system. The technology has had plenty of time to mature like catalysts on gasoline engines.

[@smirnoff56]

With the current price$ of diesel fuel & money-light huge payments. . . ...forgetabboutit.

[@dimisrambodimisrambo7285]

happy new year my friend subtitles pleaseee

[@tobycanales1062]

can you give us a lesson on the tech 2 win and gds2 and cost

[@jamesmullan353]

boom

[@ginobragoli1448]

I watched the video but did understand what the cause if the limp mode was? All I saw you do was the Def fluid test and then the truck seemed to work? What was the the cause???

[@jcnikoley]

It’s crazy the PCM/ECU disables the vehicle over a DEF fluid issue.

[@michaelpowell4823]

Would really like to know the purpose of limp mode in the first place; why not just a MIL for if NOx doesn’t drop between sensor 1-2 when commanding injection of DEF?

[@atikovi1]

These clean diesels are repair nightmares after the warranty runs out. How were they able to buy a used exhaust system? The EPA prohibits the sale of used converters.

[@PineHollowAutoDiagnostics]

Well when they are on backorder people find a way to get it done lol

[@lvsqcsl]

@@PineHollowAutoDiagnostics Well, not in this case, but in some cases I have heard a term called "Russian Repairs."

[@turboimport95]

Since the EPA wants people to only buy converters brand new and there is a backorder. people need to send the EPA rental car bills while waiting on "new" parts and see how quickly something would be done...

[@petepeabody8905]

Ivan,, Partial success???? Ivan why didn't you go to the next step and diagnose the glow plug issue?? It must be due to the owner's wishes. Would have liked to have viewed the total fix.. Great job as always. Time consuming, but worth it.....Thank you.....Pete

[@PineHollowAutoDiagnostics]

Yup needs glow plug #7 replaced 👍

[@mrfishbulb7187]

@@PineHollowAutoDiagnostics What's your thoughts on the glow plug fault being the possible cause of the clogged catalyst? i.e not being allowed to regen because of engine light. Seems plausible to me.

[@mickcondo3606]

​@@PineHollowAutoDiagnosticshi I have a gmc 6.6 20:52 2013 poor fluid quality on dash iam havein trouble doing the 70 min test as it fails I've seen that the dpf temperature is not getting hot fitted and tested 9 injector. Any help would be appreciated thanks

[@cardiaglexia995]

Sorry, i forgot.all good for you and your family in 2023.sorry.

[@larstell]

this is over course for evening school....

[@charliemagoo7943]

To all the people thinking the glow plug is the issue or needs fixed right now, the glow plugs will seize in the head and require head replacement. It's a direct inject engine and doesn't need the glow plugs unless it's a cold start. Trying to change the glow plug can open a can of worms the customer was not wanting.

[@chekelley6861]

A Duramax with a glow plug code? Whaaaaaaat? LOL

[@DavidMiller-ih4li]

I was under the impression that if the check engine light is on, it cannot or will not complete a Regen cycle. If that's the case, the new DPF will clog as well. However, maybe it's only if the light is on for certain reasons that it won't Regen or maybe that is only 2017 and newer I'm thinking of?

[@willemstreutgers1154]

I learned the DEF is hygroscopic so you have to fill the DEF tank to the brim every time you fil up the diesel tank. Use good quality DEF.

[@Franklinveterinarycenter1of4]

not in the winter months!!!!!

[@dennisbailey4296]

It seems it took you a long long time to get this test to go through you're looking at what two or three hours to finish this kind of a test? All the best from Canada

[@hooptierescue2540]

what was the final check engine light all about?

[@akdenyer]

I am wondering if the Autel VCI will work with Tech2Win?

[@pootthatbak2578]

I own a 2011 but gas powered..same exact interior..it seems like you are sitting in my truck cab. I hope you earned about 500 dollars for that..

[@snowboardguy1233]

Find a company in Canada, ship tuner and piping to your door. Never have problems again. 🤘

[@shadymaint1]

I've got a 14 2500hd in the shop with a def quality message and is limited to 55 mph. It had a code for a upstream NOX sensor so I replaced with a dealer part. It will do a service regen just fine but it will fail a fluid quality test. Will do the regen part of the test but reports the test was aborted and won't pass.

[@Franklinveterinarycenter1of4]

OK, even with new emission system (15K): SCR,DOC, DPF, nox sensors, and good used DEF injector.......The "regen should be done regardless to complete the RFQT. The other scanners.........snapon and thinktool should be able to complete the clearing codes of emission sensor. I'm just saying that the tech2win software with interface is a good choice; yet, by following the technical service bulletin to the letter, the other scanners should be able to complete the clear emission DIC and DEF light.

[@HotRod-wv4vm]

Are the issues with this truck are also present in Ford and Ram trucks?

[@zx8401ztv]

Well done ivan, that ecm wants a slap for being a bit too stupid lol. Designers and there silly designs.