I Had My First Issue With The 2.8 Duramax ZR2

On this episode of Repair Geek I fill you guys in on what happened with my 2.8 Duramax ZR2. I had issues with the exhaust aftertreatment system. My DEF injector was plugged, not letting DEF into the exhaust system. When this happens the engine will not let you drive over 65mph then 55mph and eventually only limiting you to 5mph. This is mandated by the EPA it has nothing to do with GM. GM is simply following the government regulations. This issue could affect any 2.8 Duramax diesel powered Chevy Colorado or GMC Canyon. I am unsure why it happened but it was resolved under warranty with no issues.
Questions? Shoot me an email at [e-mail]
Disclaimer:
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[@onlyweknow2]

Got a G.M. owned 2018 ZR2 diesel that was from the Las Vegas Auto show with 98 miles on it. Driven for a little over a year with 13,000 miles on it, haven't had a problem. In fact this diesel is a little jewel, it's very fuel efficient and is unbelievably smooth. I would recommend the 2.8 engine choice to anyone interested in a diesel.

[@keltheb]

13k is no benchmark for reliability. 50k maybe. I have a 07 duramax and have had virtually no issues and 200k miles. I don’t think any def diesel will be able to achieve that.

[@twis7edashice106]

Buy yourself a lottery ticket because that's very rare I've had lots of issues never buy another GM product again

[@drjhunter]

Have a 2005 duramax and have a zr2 bison 2.8 ordered. Don’t listen to the haters. Just delete it

[@causeuncause4059]

Leroy Truk most are ford owners anyways

[@HR-rt9nh]

Hey Bob, neighbor here... got my 2017 Z71with the 2.8 diesel from same dealership had just under 18k miles on it.. so far so good, the truck is great! i though i had a DEF issue in that the indicator reads "OK" level but the sliding gauge just to the right stays at the bottom end..but I seen others with the same indications.

[@80sfordguy]

Ok man your almost correct! I’m a cummins engine tech, though I’ve worked for ford, gm and cat. All of them except cat (cat has only the cgi / EGR system, diesel exhaust fuel injection, doc and dpf) use the following aftertreatment system. Components vary in size and manufacturer, but they all go in a specific order. Sensors can be mounted either in the component or in the exhaust pipe as well. Here’s the order: engine control module, oem ecm connector, EGR exhaust temp, EGR exhaust pressure, turbo vgt, diesel fuel inj, exhaust gas temp, inlet NOX, doc intake temp, inlet dpf temp, inlet dpf pressure, dpf differential pressure, outlet dpf pressure, dpf particulate matter, dpf outlet temp, def controller, def temp, def pressure, def quality, def heater, def filter, def doser valve / inj, scr catalyst inlet temp, scr catalyst outlet temp and outlet NOX. The following is the order of the exhaust components: exhaust manifold, Exhaust gas recirculation cooler, EGR valve, turbo, diesel oxidation catalyst, diesel particulate filter, diesel exhaust fluid decomposition tube (def comp tube may be integral to the exhaust pipe), supplemental catalyst reduction canister (scr cat), muffler / resonator and tailpipe. These sensors and components are in a specific order and only function in that fashion. They are divided into 6 systems: exhaust gas recirculation, aftertreatment system controls, diesel exhaust fuel injection, diesel oxidation & particulate filtration, urrea / def injection, supplemental catalyst reduction. These aftertreatment systems are controlled by the engine control unit via the oem body controller and wiring harness. Simply put they’re supposed to make your engine more fuel efficient for more efficient power and less ozone polluting. That the theory, but it doesn’t mean that’s the way it actually is. More money for more crap that will eventually be replaced by god only knows what in the distant future.

[@VARITHMS]

The good ol EPA. Saving the environment one plastic def bottle at a time

[@ashtonmariefranklin725]

Def is actually more harmful to the environment than most people would think.

[@francissullivan6400]

Yes..FUCK THE E.P.A..delete tune and straight pipe!!

[@francissullivan6400]

@@ashtonmariefranklin725 its AMMONIA

[@JcmMagNoo]

EPA, CARB, California law makers and environmentalist in California are not engineers. Just retards making us spend more money

[@wildcatoutdoors]

Don't forget all the cardboard those plastic bottles come in.

[@easttennessee6096]

I had a similar issue w/ my new 2019 ZR2. It took 2 different Chevrolet dealerships to find/fix the DEF problem. It was NOT related to an obstruction in the fluid system, but simply a wiring harness coming loose and burning the insulation on the exhaust pipe causing a "short" in the harness-to-computer circuit. Since correction, I have had excellent performance and am very happy with it.

[@tysutubage]

If I ever have any problems related to the exhaust system, it's getting deleted.

[@BadMedic]

T C mine's been deleted for 1000miles and I couldn't be happier

[@BAYAREAMX]

Where are you guys getting a delete tune from?

[@scarsman]

Contact Shield and Spear Performance. Best out there.

[@patriciomunoz2830]

Is the best to do

[@bjorker40]

Deleting voids all warranty...as soon as mine is up I’ll also be deleting

[@davem3789]

I’m glad I have an older diesel.

[@zsraney]

David Moutardier got an ‘05 duramax. 290,00 and going strong.

[@anonuser4392]

7.3 powerstroke all day baby

[@ganjafarmer1572]

92 Nissan TD 27 190,000 4WD daily driver. Mechanical pump and injectors.

[@jeffs7707]

Good info. Ran duramax 6.6L engines, 2010 with over 850,000 miles and a 2013 with 674,000 miles. The experience I have had, these emmisions exhausts, whole system, needed to be replaced before 500k mile mark. The newer system with the exhaust fluid is way more sensitive to fluid/fuel quality issues. Buying DEF from truck stops I make it a habit of dumping the nossle downward before bring it to the fill in the truck. Seem the nossle aways has fluid in it being stored upward. I have even run into issues with fuel in far Western States being that it is some sort of alternative bio fuel. Causes the regen system to not burn as hot as the truck needs to clean out the particulate filter. White smoke and engine codes.

[@chadsteele1]

I've heard some DEF is low grade, depending on where you get it from, certain "brands" If it was offroaded, you got nothing to worry about, have you seen the press courses..... minivans could do it.

[@commonsense7057]

Just 1 issue? You are lucky my friend. My 2018 has had many issues since i purchased it new including a new rear end at 800 miles. I wont be keeping at past the warranty.

[@GrandPrix46]

The joys of owning a 2001 LB7 that came with no emissions crap whatsoever, and why I'll keep it forever.

[@drjhunter]

Jeff Smith I have a 2005 duramax that I will have forever as well. The newer diesels will never outrun it so why buy them ?

[@Kyle_Godfrey111]

Leroy Truk 1998 12 valve 270,000 still going strong. Never getting this new garbage👍🏻

[@techs1smh13]

Have 03 federal emissions.no cat or egr ex texas truck in california full banks big boss bundle six gun w speed loader. Hauls ass leaks nothing. Has been a great truck run bio or my own mix. Smells like french fries.haha

[@mikefoehr235]

My work van is a MB Sprinter...to open the DEF cap i need slip joint pliers...the crystals seize the cap on. Diesels are nothing but trouble...hard to start in the cold and the cost of the engine makes it cheaper to burn gas.

[@RepairGeek]

You get most of that extra money back you spent on the diesel when you trade it in.

[@johnkraft5640]

Issues because of the American EPA. The rest of the world runs on diesel. I live abroad and diesels are superior.

[@Mayamax3]

That exhaust system is way too complex to be reliable long term. I'm all for clean air & water, but I wouldn't take a chance on owning a diesel in the U.S. I currently own a 2015 Colorado with the gas 6. It has been trouble-free thus far with 24,000 on the clock. When you drop 40 large you don't expect to running to the dealer every other minute. I hope you don't have a stinker on your hands. Good luck man.

[@RepairGeek]

Time will tell. It only had 6700 miles on it when the issue popped up. My girlfriend is a sustainability major and couldn't believe they would de-rate the engine to 5mph because, how many of these 2.8's are out there? They can't be polluting that much. Emergency vehicles can drive around with the same fault for 40,721 miles with no de-rate according to the owners manual.

[@skoal22005]

@@RepairGeek "Emergency vehicles can drive around with the same fault for 40,721 miles with no de-rate according to the owners manual." no shit? wow now we are getting somewhere inb4 computer change lol

[@RepairGeek]

@@skoal22005 it's because GM or the EPA doesn't want to be sued by a patient in the back of an ambulance that drives at 5mph to the hospital. Ford and International got the pants sued off of them back in the day when 6.0's would blow head gaskets on the way to the hospital.

[@MrRuffus09]

full delete!

[@EGGINFOOLS]

Piss in the DEF tank. Same thing.

[@CarlaExotic]

Don’t have to worry about DEF in Australia, or the EPA, thankfully . 14000km so far its been good. Did a 6000km pulling a camper trailer trip to Queensland last year and the only problem was hitting a kangaroo on the return trip. We have the SUV version called a Holden trailblazer, and it’s been awesome. I think the EPA has broken your diesels, sad, that’s so sad.

[@hmdwn]

Diesels use to be so simple and RELIABLE...like my 1988 F250 7.3 IDI...still have it...original owner ;)

[@kencoconstruction9236]

Good video man. Higher RPM's and engine loads are the only way to avoid (but on a majority) of the exhaust issues. Tier 4 final equipment has similar exhaust, but has far less issues because the exhaust runs so much hotter. DEF when left to sit gets pretty nasty, so the faster it flows through the better the components survive.

[@michaeldillon9080]

The second your warranty is up RIP that emissions crap off, I bought my wife a 2018 F250 Platinum the first time I drove it I got the low Def warning so it's going to get a DPF delete aftermarket exhaust and a program soon.

[@charliemagoo7943]

Ive seen it many times. Its not the inside of the def injector causing problems. Its the part of the injector in the exhaust. Builds up a crystal mess when exhaust is too hot at shutdown. Just like spraying hard water on windows. Most times after running again and cooled down the crystal dissolves and sprays fine. Just clean off the injector tip and good as nee

[@charliemagoo7943]

New

[@darrenkuehn8479]

My mileage warning would drop dramatically over a few days. 900 then 3 days and 120 miles later, drop to 200 miles, then 25 miles later drop to 60 miles. My 2015 GMC 3500 had 149,xxx when I bought it in January 2018. These problems came up in my first 7000 miles. It would just eat through def fuild! I switched to GM DEF and within 1000 miles it started running better. I now have accurate warning messages and reduced fuild consumption. 15,000 miles later and no issues.

[@magnacartasamadams8189]

There's a good way to help keep your exhaust system from acting up in these diesels Try not to hit the throttle pedal too fast just kind of slowly push the pedal down to accelerate What's happening is if you accelerate to fast it's like as any diesel you're making a lot of black smoke in their So just try to accelerate in a way to where you think it will not produce black smoke Also it helps to put fuel additives

[@bryanwright2796]

In canada. 2018 / 112,000 klms. Problems, have had Diesel particulate matter sensor replaced 8 times. Def tank heater replaced. Nox sensor at 11,500 klms. Really wish GM would replace prats and labour for the lifetime of vehicle for building something so defective and letting them into the market for sale. Bryan

[@kawi9156]

These problems usually occur from idling around all the time, very simple

[@leadnsteel1428]

Ive had mine freeze in the cold. Probably just gonna delete it. It regens once per tank and that also kills the mileage. I love the truck and the amazing mpgs the diesel gets but yes the def system is stupid and its gonna cost an arm and leg to repair so might as well just delete it anyway. Our province just got rid of drive clean etests too lol. The thing that bugs me is these diesels can run on biodiesel so just give us that.

[@great0789]

WOW! That is a LOT of sensors in the exhaust system. Long term that would be a pain to maintain for a DIY person like me. Thanks EPA. That is just one more thing to be thankful for going with the gasser V6 18' Colorado I have. These trucks are amazing machines. I am sure I would love the diesel as well. I would just do the delete if I had one... take all of that stuff off... and put in some exhaust bung plugs where the sensors and fuel injector input were (If Possible). Then all of that junk would be out of the way... and fade into a distant memory. lol

[@marketingmajor8126]

Which is why everyone is doing the delete with cars that are equipped with DEF once the warranty expires lol. Friend of mine has one that's been deleted, it's phenomenal now!

[@7thaller]

Thanks for info. Well explained reality on DEF systems.

[@chrisgeeseka5168]

GDE tune is best for truck, do the def/egr delete. Straight pipe it.

[@DonR]

I have the same problems, many times 1st day of vacation, replaced cpu, reset itself 5 or 6 times even after it started limiting the speed. always seems to start when it gets about a gallon to gallon and a half low on def. all they seem to do is reset the error. getting ready for a change. My jeep grand cherokee 3.0 never had any problems.

[@boneyfireems1446]

PPEI can fix all your problems. My exhaust fell off somewhere after I hit a speed bump works a lot better now LOL.

[@RepairGeek]

GM can fix my problems for free for the next 5 years or so. After 5 years, I may be in touch with them.

[@boneyfireems1446]

@@RepairGeek My truck had a 46k bumper to bumper warranty. At 36k I deleted. My main reason for deleting my truck was no more EGR and no more DEF problems. I also nodiced some mornings on a remote start my truck would surge they could never fix it I took my truck to chevrolet 5 times they never fixed it. The delete did :). I completely understand why you wouldn't want delete yet. On the other hand I'm super glad I did no more dead pedal , loads of power and hopefully longer life time will tell. Congratulations on the truck!

[@skoal22005]

great video and information. What I'm about to say are my opinions of course, I don't feel like GM makes a very good vehicle anymore. People, family, distant friends, I always hear them saying they had problems with their newer GM. Now as for this truck and the diesel, personally I'd be afraid to own one. A distant family member had one, he's not a car guy at all, he said he got rid of his because he was having to leave it at the dealer too much. When I began to ask questions he didn't really know what the problems with it were, as he didn't ask questions after the dealer (GM) fixed it. I asked if I could see his receipts, It had been to the dealer 9 times, 8 of the times it was related to the DEF system. They even put a new engine in it for some reason towards the end before he traded it in (Not sure why the new engine) If it were me I'd buy a Toyota but people don't like them for various reasons. I don't drive a lot so with the DEF sitting around in the tank, I'm sure I'd have a nightmare on my hands. I love the fact that the trucks have a Duramax in them but too rich for my blood. Are you thinking of getting rid of it before the full warranty expires? I wouldn't blame you, only thing is you'd probably lose a lot of money doing so. I'd either trade it in or delete that shit but I don't totally know what I'm saying or what it all entails when I say that. I know you know lol

[@RepairGeek]

It's staying the way it is for the duration of the warranty. That's all I'm willing to say...

[@skoal22005]

@@RepairGeek i got it.

[@GIGABACHI]

@@RepairGeek . . . well played, Sr. 👌

[@peiguy1982]

DEF crystalizes with cold temperatures. It said right on the bottles do not store at under 10 degrees Celsius to avoid crystalization. Get used to fussing with def nozzle and pump every 2 years if you live in a cold climate. My 2 year old Ram EcoDiesel cost me 3300 dollars no warranty for new nozzle and pump installed at dealer. 300 km until no start message. Good thing to trade and get rid of. Bosch builds the nozzle and pump so don't kidd yourself that it's a dodge issue. After 2 years and 40k km no warranty and you're up shit Creek. 82k km on mine, I live in Canada not the motor to have here.

[@LibertyHill2009]

The EPA has ruined diesel engines in this country!

[@collinator68]

So you're saying if I delete the emissions parts, this truck will be totally solid and good to go for hundreds of thousands of miles?

[@steelmill2928]

I got a chance to drive a Toyota Hilux in Costa Rica with a diesel that engine was badass they better never hope that engine package comes to the States

[@marketingmajor8126]

It wouldn't matter if it did come to the states, it would still have to have a complete DEF system installed on it and then it would never perform like the Hilux you drove in Costa Rica. That's precisely why Toyota hasn't brought it here. They actually did the testing on their diesel hooked up through a DEF system and it did piss poor. If person here in the US wanted they could simply buy a ZR2 that's out of warranty then do a DEF delete and tune and it would run circles around the Hilux.

[@mikecarr1484]

Modern trucks have designed obsolete in mind. They want you to have to buy a new truck every couple years.

[@mattersalma]

You still have this truck? How’s it been since this video

[@Psitty46]

Had the same thing happen 3 times over the course of the year. I now have a gas!

[@kevinmccune682]

The gas powered truck is the right fit for a lot of Folks,GM will even tell you that.

[@drjhunter]

So if you could do a delete on this duramax on day 1 without affecting your warranty would you do it ? Because I’m doing it to mine and I don’t give a crap about the warranty

[@elemsit]

Shocker. Diesel with a def problem.

[@HoneyBadgerFarm]

Buy some replacement sensors and throw them in a storage compartment and forgot about them.

[@jacobsebastien3910]

Yepp ✅

[@chrismair8161]

My Boy does fine 2018 Mallett blower and all the goodies! [e-mail] Daily driver can kick yer sorry towel of crying ZR2. I built my baby (Sleeper). Maybe the owner is not that much. Diesel does not like being idle for a long time and Vacations mean a long time. Diesels need constant attention. You bought this thing not knowing? Send it back! She would be better off.

[@RepairGeek]

After attempting to read what you wrote here. I can say 1 thing with compete confidence... The public education system has failed you.

[@propellerhead9197]

This is why I wont buy a modern diesel vehicle .. Exhaust system too complicated. Everyone I know with a new Duramax has issues with DEF system of some kind. I going to get a gas Silverado.

[@robbell24]

Propeller Head buy a Toyota and get reliability. Low cost of owner ship and high resale value. Or buy that Mexican truck the Silverado and get high cost of owner ship and low resale value

[@motorradingaround1220]

I’m thinking it wasn’t bad to start from purchase it’s more like it went in and when truck went from hot to maybe a cold day out then the fed might have froze in injector as it has its own heating system for extreme temps like cold nights. Plus def has a one year life of its in tank for longer then that which you don’t know before your purchase when it was added to tank then it looses its molecular structure and isn’t as efficient at doing its job

[@chanseormon]

If I had a Colorado ZR2 I’d put a 6BT 5.9L 12v Cummins Turbo Diesel in my Colorado ZR2 I love the old 12v because there’s no electronic injection I love the mechanical injection of the 12v 5.9L Cummins Turbo Diesel engine

[@RepairGeek]

It's a great engine no doubt you could almost use the valve cover as an arm rest in a ZR2. Cool idea for sure but, you would have to do a TON of cutting haha.

[@asconstruction4146]

Sounds like the def is not fresh enough being in there for 3 months try only a 1/4 tank at a time just enough to get it to be clean 🧼

[@dixy2k]

All modern diesel have problems with the exhaust after treatment. DEF, DOC, DPF, etc. Unless you delete all that crap, it will come back again and again and create a huge mess in terms of carbon build up.

[@longrange341]

I always cut the cats off my trucks, I have only owned gas trucks though, also diesels hardly pollute anyways I have no idea what the big deal is with these power robbing expensive and inconvenient systems being removed is, they hurt the truck more than the truck hurts the environment, it's like smog pumps from the 70s, all they do is suck and dont help shit.

[@robbell24]

longrange341 it's because ppl can see it. Cut the cats off on a gasser and no one sees the fumes. But because you can see it on a diesel everyone's gotta feel some kind of way about it.

[@panthermartin7784]

Mmmmhhh everyone that I know that owned a pos 2.8L now own gas pots. Definitely not worth the headache.

[@aussiehonchar3606]

i went through a turbo in my first 30xxx km not even miles pain in the ass do t know why always warmed it up on cold days -35ish they said it was from the cold

[@AlienCatcher23]

Sounds like a press car based on the super low mileage and differential replacement. Probably not a bad thing if it was...

[@db9291]

Anymore DEF pump issues? Looking at a used 2018 Colorado ZR2 105000 miles. Is that past timing belt replacement miles? PS no warranty. One owner Texas truck clean. ?

[@RepairGeek]

No issues since this video. Belt needs replaced at 150,000.

[@jdp0316]

Delete the whole emissions system if your area allows you will get a lot longer life out of the thing

[@jrunberg]

Insert should have bought _______ here cause one guy out of 2 billion had a problem with his ZR2 diesel.

[@BigFrogs4x4]

Our ZR2 was a dealer demo. Had 10k from Dealer taking it to shows etc. Our build date is 3/17. Earliest build date I have heard of yet. Whats your build date?

[@RepairGeek]

Funny you should ask... 03/2017

[@BigFrogs4x4]

@@RepairGeek now that is cool! Yours wasn't from a Michigan dealer by chance was it?

[@RepairGeek]

@@BigFrogs4x4 No, I bought it in Alliance Ohio. About halfway between Akron and Youngstown. It was sold at an auction in South Carolina to the dealer in Alliance in late April 2018. I bought it in late May 18. The truck had an in service date of May 2 2017, that was when the warranty started running on it. I got the dealer to throw in a certified used warranty so, it was literally a "new" truck with 1000 miles on it. What happened to the truck between May of 2017 and April 2018 when GM sold it is unknown. It's been around for sure. The mud under the truck is very red and sandy. Nothing like what we have around here. You can see it when I remove the access cover for the DEF pump.

[@BigFrogs4x4]

@@RepairGeek i saw that. Almost moab color. We bought ours from a dealer in norther pa who bought it from a Michigan dealer who was auctioning off their demo cars and trucks. At least that's the story we got. But so far been great. Only issue was leaking rear shocks and axle. And of course don't mess witht the emissions stuff. That be bad. ;-)

[@freddyflintstoned913]

GM sent the wrong part? How would a person buy their junk. WHY?

[@crsantin]

Never buy a press vehicle. Good luck with the truck, I hate to see new owners have issues with expensive vehicles.

[@RepairGeek]

Its been fine. 2 years later. Knock on wood lol.

[@watchmanexpert]

@@RepairGeek how is u truck ? I want buy 3.0 duramax but the emissions problem really scare me … I never owned diesel

[@rickr1689]

When you see brand new semi trucks broken down on the side of the highway its probably a emissions issue. Major problem in big trucks.

[@norman_sage2528]

My food will cost more

[@TheMrbeasely]

What a bizarre statement. There’s absolutely no information to back up that generalized claim.

[@NoName-tz5ji]

TFlorida1 like hell there isn’t! I’m one of them!

[@countryjoe3551]

@@TheMrbeasely do you drive a OTR truck or operate modern heavy construction equipment? If you did, you wouldn't make such a ludicrous statement.

[@abolishwelfare]

TFlorida1 ....all the information I have is from actually haven driven after treatment equipped Freightliners, Volvos and Internationals since DEF became federally mandated. My personal experience is that emissions related shutdowns have been quite frustrating. I’ve had multiple breakdowns related to after treatment systems. The only other breakdown I’ve encountered, over the last several years, was a broken clamp on the charged line from an intercooler. I’ve had multiple failures to regenerate, low DEF dosing, clogged DPF filters, and coolant leaking from the DEF tank heater into the DEF itself. In fact, thanks to a problematic DEF system, I spent a Christmas at an International dealership instead of with my family.

[@duckwacker8720]

Delete it and don't post anything about it!

[@anonuser4392]

"Don't delete your pickup" AGGRESSIVELY NODS lol, love it. Great videos.

[@roverron7509]

Thats a complex exhaust system, I just don’t know how all of those components will hold up long term, especially if you off road. I’ll stick with gas for now.

[@jeremymoran2816]

A clogged def doser (injector) can occur. I see it on buses that I work on. Just part of the fun of owning these new diesels. Good luck

[@kevinmccune682]

Its the nature of Urea to form crystals, ever hear of gout.?

[@nackt5911]

Had my def pump replaced at 15k miles. Sold the pos 2.8l Colorado at 38k miles with other engine/transmission problems

[@duken4evr]

Nice video! I appreciate your showing all the sensors and fuel injector. Your video ended an argument, as there are a lot of people who do not believe me when I tell them the 2.8 has a 5th "indirect injector". You saved me a trip onto my dirty cold garage floor to photo it. Sending a virtual beer your way sir. The actual injector is the same part as the big Duramaxes by the way. From what I have seen, the Diesel particulate filter sensor is the most common issue, followed by the DEF injector. My Canyon has 38K miles on it, no problems to date knock on wood. It has a GDE emissions system intact tune, which limits speed to 124 MPH in the event of a DEF code - LOL. The final version of that emissions system intact tune (before the EPA storm troopers moved in) reactivated DEF injection, which I prefer as it seems likely the injector is less likely to crystallize into a non functioning lump if it is being used and not dormant. That and running the DEF system negates having to drain stale DEF out of the tank - one could still get a bad DEF message even with the tune. All versions of the intact tune turn off EGR, which is a great thing as the 2.8 runs a lot of EGR. I recommend everybody install a catch can. I have a Provent 200, it catches probably 8 oz of oil between changes. Taking the oil mist out just leaves dry EGR soot for stock engines. Mist plus soot = intake clogging goo... Of course, no dry soot and no PCV oil in the intake is best, that is what the combo of catch can and tuning gives you. Averaging 27.5 MPG lifetime over 28K miles with the tune (stock was 25.1, and it has stock sized but knobbier Cooper AT3s on it since tuning, which reduce mileage), breaking 34 MPG cruising on the highway at 70 MPH is not uncommon. The truck is a 4x4 long box. The tuned 2.8 hardly ever has to rev past 2,000 RPM. Stock it had good low end, tuned it has, so much low end torque it is kinda ridiculous. Also have the GDE transmission tune, it shifts a lot earlier and firmer to take advantage of the torque. They are gonna have to pry this particular Canyon from my clutching fingers :)

[@randywalentoski551]

The government has ruined cars!! All of that stuff is unreliable and costs the vehicle owners lots of $$

[@UncleFluster]

So the EPA Mandates that the vehicle slows down with a DEF malfunction??? So with all the tailgating that goes on these days the EPA will be responsible for numerous injuries and deaths... GOVERNMENT IS THE PROBLEM!!!!

[@mt1885]

@@arnehurnik When you are living in YOUR mud hut and eating BUGS - let us know how that works out for you... 🚽

[@BrogeKilrain]

Too bad they ignore chimneys and heating systems that burn oil, coal, wood, burning bunker oil with zero abatement.

[@BrogeKilrain]

@@arnehurnik Its all an anti auto agenda globally now. EU smog cities mostly winter as burn charcoal, turf. wood, coal as electricity too expensive due to green agenda and KWhr over .40 not uncommon. China same. Sweden was smart as big Hydroelectric use and 0bama missed his opportunity for clean air in USA.

[@t4thfavor1212]

@@arnehurnik def is for NOx and has nothing to do with soot... Its active sabotage for resale and overall efficiency.

[@kaulincurtis9665]

EPA requires diesel emissions to be cleaner than the air we breathe.

[@kaulincurtis9665]

@@REALBanannaman ever heard of a hyperbole? I'll give you a hint. I was exaggerating to make a point.

[@mquez509]

At least the Tank is under the truck unlike the 2500 hd trucks makes it hard to tell if it fell off if you know what Im talking about! Best to delete after the warranty is up in my opinion.

[@johnkraft5640]

America EPA CAUSES this drama. I live in Baghdad Iraq working for our government and we use to Toyota hiluxes. Now we use the Colorado ZR2 and guess what we have none of your exhaust crap. No DEF, no sensors, a muffler with one sensor and we love it. My team and I love the ZR2; we average 35 miles to a gallon and these machines are loaded down with 5000 lbs of weight to include body armor. When we go out with Chevrolet Suburbans with the 6.0. Junk. Gasoline is just no when loaded down with armor they get 2.6 to 3.0 miles to a gallon. We beat the crap out of these ZR2. Delete your emission crap and I would not doubt a 40 mpg truck on the highway

[@jblyon2]

You get all those benefits, and the only thing you need to do to get them is die of cancer from the particulate emissions! I can't believe the US hasn't seen the light on that trade off!

[@Constabruity]

jblyon2 right...

[@natehawkins2910]

jblyon2 Lol you’ll die of cancer from Glyphosate a hundred years before diesel particulate matter gives it to you. Don’t you realize the ultra-tiny particulate sails right thru a dpf? Only the large, black particles are trapped. They are heavy and fall right to the ground. The ultra fine particles can stay afloat for hundreds of miles. Boy, you need to learn more about actual things and not just blindly follow liberal-esq thought patterns.

[@drjhunter]

jblyon2 get educated. You spew stuff out that you know nothing about

[@allanjohnson2552]

john kraft I know that they don’t use def systems on any Military trucks or equipment. It is because of reliably issues.

[@5spottedbass]

Delete the DPF- EGR Fass lift pump CP3 upgrade Time Let er eat!

[@TomTom-ib3xe]

I have that engine in a 05 jeep liberty. 120k miles, egr has been “broke” for the last 110k. Runs like an absolute dream (with the now suncoast TQ). Zero issues. The rest of the vehicle will probably fall apart around the engine though, but until then, she’ll rattle on.

[@MrMikey1273]

I have an 06 CRD. Really like it for the last 10 years. Probably will be my 1st and maybe last diesel. Don't want to deal with after treatment system. Planning to get a Tacoma

[@armanpena3870]

That is a different engine. Might be Vm motori r428 or r428. This is newer 2.8 durmax vm motori XLD28

[@jpatch32]

Great video. As a GM dealership mechanic who works on these systems. I cant stand the DEF system. Thanks for showing some of the sensors and explaining what they are. Most customers dont believe anything we say when trying to tell them what is wrong when they are upset. Hopefully they watch videos like this to get a little more informed.

[@whatswiththissassylostchilld]

Jon patchett well yeah because most dealerships would be dramatic about it and try to get you to buy others stuff for the vehicle when it doesn’t need it.

[@ronaldspins]

If the price was reasonable for exhaust components it would be easier , it is had to swallow a $2000.00 bill for emissions failure (premature)

[@PatrickBaptist]

Better to just go with a pre-emission engine. You guys will never get 4-500k miles out of that new garbage before it's rebuild time. And well GM, they make garbage, I've never owned a good GM ever.

[@victorgomez7738]

Any diesel worth getting has to be pre 1997. The 12 valve Cummins is a perfect dream engine.

[@kevinmccune682]

So True,I do not know how many millions of these things that were produced.

[@der_pinguin44]

I have an Isuzu 1.8L diesel. Engine runs smooth as silk for a diesel.

[@5spottedbass]

12 valve Cummins will never be matched again!

[@mylesswann530]

03 HO CR 5.9 NV5600. No such thing as a clean 12v they're molested. Still a pre-emissions truck. It depends on the manufacturer.

[@hmdwn]

original owner...1988 F250 7.3 IDI...simple and RELIABLE! I will never, ever, EVER own a newer diesel...EVER!

[@BAYAREAMX]

As a former service advisor, getting the wrong part is a generic excuse for the repair taking long and is almost never true. It’s just to buy time, provide the customer an update and shift blame.

[@eurocrazy3283]

While compact truck shopping in 2018 I narrowed my choices down to a Tacoma TRD Pro and the Colorado ZR2. I went with a 2018 ZR2 diesel and the truck has been problem free. Great explanation of the sensors and such on the exhaust system.

[@raulgachuz9561]

Dont use cheap DEF fluid. Get your OEM DEF fluid. That can cause issues on different brands of fluids

[@limabravo6065]

This is why people remove these horrid emissions control systems when the warranty runs out. I’ve been selling trucks for five years now and the biggest and most often complaints are the modern diesel trucks and SUV’s.

[@Rodrigo-sq2bm]

I think I’ll stop looking into buying a Colorado ZR2 diesel! I’ll wait to see if Toyota is going to upgrade their TRD Pro in 2020 with power seats and rear rotors instead of drums 🤦‍♂️

[@robertpullen8474]

I've dealt with a similar problem with a Ford system. Assuming they operate under similar principles, the def system does not stay primed between injection cycles. It is purged and remains dry from the pump to the injector when not in use. Given that info, I could imagine that residue or pooling anywhere in the system could generate crystalization that would get picked up and pushed forward to the injector. This is speculation but could provide a possible cause in your situation. If this becomes a reoccurring issue I would assume an engineering flaw in the system. If it does not then it could have been environmental and a one off situation. Good luck and I hope the problem is sorted for the Long haul.

[@Ireland-bc2gx]

It is a waste of money buying the diesel trucks today ,the defense system!@#$ them up

[@josephutuadoPR]

get rid of that Chevy piece of shit and get yourself a Toyota TRD Tacoma with the snorkel

[@jr10]

This is just one reason why I will never get rid of my 2000 7.3L Powerstroke. :)

[@robertdivany1627]

Jr10 ..thats the best engine ever produced

[@robertdivany1627]

Jr10,the best diesel engine ever produced together with the Cummins 12v ..

[@andythomson2706]

I depend on my vehicle so much. The fuel economy would be nice but one screw out like that would pay for a lot of gas.

[@DANUSMC7011]

All thanks to the EPA.

[@patriciomunoz2830]

Epa based on the euro trash rules

[@125southernnh2]

The EPA was created by Richard Nixon. If you've got a problem with clean air and water, go talk to Trickie Dick.

[@zakkwyldesliver]

RCs By A Dummy He’s dead.

[@101Volts]

Just remember what Pittsburgh looked like in the 1930s - 1940s; "the Smoky City." Also look up what Los Angeles still looked like in the 50s - 60s; Smog haven. Not commenting on the reliability or lack thereof for strict emission controls, just saying remember the air hell that's being avoided.

[@jamesm568]

Get used to it because I go through this every 6 months when it comes to diesel and there emissions.

[@menopassini9348]

Glad I went with Gas. Seen many low mileage late model diesel trade ins when shopping.

[@codyt4019]

2.8 duramax is way better

[@davidbacksen5591]

I had the problem as well , 12000 miles, the warning was general engine light , pur DEF in the tank but was still full , the dealership took care of the problem in 2 hours sweet , My highest mileage is 26 average 22 around town !!

[@wilsterone6689]

Yep the crystals dissolve in water. I work on Cummins and soap and water is an authorized way to clean the injector.

[@deltabravo1257]

Your mention of DEF crystallizing is kind of what I suspected happened when DEF sits for extended periods of time. Sounds like that is exactly what caused the DEF injector to plug up. The fact that I don't drive my 2009 Duramax much is why I haven't traded it towards a newer truck. Sounds like leaving a DEF equipped truck sit around for months on end is a bad thing for the DEF system. I've had my 2009 since August of 2009 and it just hit 56,000 miles last week. Nope, I don't drive it much. I'm starting to research a Colorado Duramax as a daily driver, which is how I found your channel. I binged watched a bunch of it today.

[@GIGABACHI]

Thank you for sharing your personal owner's experience ! Looking forward to more videos on living with it. I want a Diesel powered vehicle, I really do . . . BUT . . . all this Bull Crap with the EPA and their unrealistic emissions level standards and stupid high MSRP does not help. At the end of the day the owner is left to deal with all the aftertreatment system's WOES and nightmares. It even makes me think there's an "invisible force" behind the EPA doing everything in it's power to not let light duty diesel vehicles gain a stronghold in the USDM and discourage would be owners from even considering the VERY FEW available today. And I, just like you, do not judge and criticize anyone who deletes their vehicle . . . well, OK, sometimes I do . . . but only the Assholes in their Brodozers rolling coal giving a bad rap to Diesel. Those people don't see they are digging their own "graves", singling themselves out for all the wrong reasons and getting all kinds of unwanted attention from Big Brother. 👎😔💩

[@patriciomunoz2830]

They definitely don't want people to own a economical diesel engine they can't abuse with diesel prices as they do with gas prices

[@enchantedwenis4994]

Solid def May or may not have made it past the def filter. Welcome to emission regulation systems on diesels. I have been dealing with these issues in logistics for years. Chances are the DEF did crystallize in your injector. This stuff turns into essentially chalk overtime when heat soaked. I’ve seen Volvo over the road tractors clog a 4 inch exhaust pipe with this stuff.

[@superapple4ever]

All this DEF crap in these modern deals is horrible. It ruins good trucks.

[@MandrilSolo]

You earned my subscription ! ✌️keep’em coming.

[@lougogliettino2767]

I drive school buses and I was one of the yard guys who used to take care of this shit. I would never buy a newer diesel because of all the emissions parts that never work right and make it run like shit and brake all the time

[@georges4562]

My 2016 has 35k on it and has been great with zero problems so far

[@mathieustephens8391]

I was wavering between the ZR2 Diesel and the Taco OR and ended-up with the Taco. Even though i wasn't too keen on a gas engine, I realize now it was a good choice given the BS you have to deal with Diesel nowadays.

[@MrMikey1273]

I have the Jeep Liberty CRD which has basically the earlier design of the engine in the GM mid size truck. GM is using a design by VM Motori for they engine since at one time during development they own part of VM that is now all owned by FCA. It's an ok engine and I have 154k on it but it has no after treatment system. I'm eventually going to replace it but not with another diesel. I'm going to go with the Tacoma too.

[@planbenterprise]

Chevy fans better pray Toyota never brings their 4 cylinder Diesel to the US.

[@Terminxman]

The reason Toyota hasn't brought a diesel here is because they would have to put all the DEF and emissions shit on it and it's not worth it.

[@Chris-dy1cb]

Lol no one is importing diesels here because the restrictions are insane and hinder performance

[@mojavedesert2610]

Really true!🍸. As I travell the world and watch the better diesels!🤦

[@yakbiker75]

Toyota has had big problems in the Hilux with their dpf , $7000 a pop to replace when they fail... No thanks.

[@hochhaul]

Why? Toyota quality has been piss poor lately. The 3rd gen Tacoma has been a flaming pos. Rated least reliable midsize truck 3 years in a row now 😆

[@Hustler1856]

My 2018 Def system went out three times and the Chevy dealership had to replace some module because the wires where corroded. I only had the truck for 3 months brand new It had 4.3 on the odometer.

[@conantdog]

This is why I will never buy a modern diesel truck.

[@Carlos-ip2ir]

i heard truck stops are better because the go through more def

[@PureBlood777]

Should have bought a Tacoma my 2017 TRD off-road and has had zero issues

[@Trident_Euclid]

Diesel??

[@jasswear8911]

Resist the Lies: Toyota, has had way more issues with diesels in the countries that they sell diesels in. They will not sell them here for a reason. Try Googling Toyota of Australia Diesel issues. I like Toyota too but I don’t Sack Swing like you.

[@der_pinguin44]

Sure, those VM Motori diesels make power but I've only heard reliability complaints from every local owner. Hope it lasts you.

[@jthor8373]

I had similar issues with my ZR2 too. Had to go to the shop three times. First time was for the DEF injectors being clogged. Second time was for a NO2 sensor and the third time was for a DEF module or something related to the DEF system ECU. I still enjoy the truck and hopefully these issues have been resolved but you're right about most of the issues we're seeing being DEF related. The powertrain I know is solid.