5.0 XD Cummins preventive maintenance crankshaft failure. 

[@keisersozeeee]

Awesome video , its about time someone came clean as to why this is happening,who woulda thunk it was the harness, I always assumed it might have been a metallurgical issue. You deserve a medal from Nissan for figuring it out. I luv my truck but was always worried about the crank issue, this makes me at least feel I can do something to stop it from happening.

[@oinchadoomandwolfboy]

Incredible video my dude. I’m excited that you are started up the 5.0 Cummins videos again. 🤘🏽

[@jezraelflecha1633]

BEAUTIFUL FIND! If it wasn't 0 degrees out today, I'd be out there checking it out. Thank you.

[@thomasschleis2545]

This engine was used in Tiffin Breeze motorhomes for 2017-2019. They just replaced all injectors and put a modified wiring harness on my 2017 because of this issue.

[@UnicornGuru]

That's one thing I'll say about the Japanese, they suck at fixing problems. I despiiiiiise Toyota for this very reason and Nissan is a close second. When the 5.6 gassers were grenading they just pretended like it wasn't happening. Customer service is a joke. They refer everything back to the dealer who is incentivized to deny the problems because they have to pay for it out of pocket to fix under warranty and then pray that Nissan will reimburse them. It's a crap way to handle the backend.

[@thecliffold5879]

​@UnicornGuru isn't this Cummins issue? Which is USA not Japan?

[@UnicornGuru]

@@thecliffold5879 Yes, Cummins is American, but the engine harness is Nissan. Even though the Titan is unquestionably the most American truck as far as production is concerned, it is still, for better or worse, a Japanese company and they refuse to fix problems or even acknowledge them. Not sure if it's a cultural thing or what, but you can see it across the spectrum of Japanese companies. Even companies like Sony who is notorious for producing stuff that is incompatible with other brands, like sound bars for your TV, will never openly admit that their products are deficient in any way (in my experience). If the Japanese would put some of their ingenuity towards actually sussing out these problems and fixing them, the Titan would be virtually bulletproof.

[@UnicornGuru]

@@bige9830 Enlighten me. I'm willing to be educated. 🙂

[@bige9830]

​​​​​​​@UCy7QrgeYnYgaxc5PZlLy-UQ You have absolutely no idea what you're talking about. What the author of this video didn't tell you is that when you hydraulic a cylinder you bend rods and valvs. When a cylinder goes lean It burns A hole in the piston. Did you get massive blow by. When they run rich they dumped soot out the tail pipe and it's got DPF problems.The problem with that engine is they spin main bearings.And it's the spun main bearings that causes that crank shaft the brake. Another problem is people allow modern diesels to idle for too long crank case fills up with fuel. Every single last thing that is related to the engine is Cummings products. I've been wrenching for 40 years.I've been working on nissan's for twenty two years I perform a tremendous amount of warranty goodwill repairs. Nissan buys transmissions on cars up to a 100000 miles.Don't tell me they don't stand behind their product.

[@pbat77]

Great information 🎉

[@thurlravenscroft2572]

I have a hunch that Nissan new this was the problem for quite a while. My truck started running rough and knocking/shaking real bad, but was under warranty, so I took it in. They said it was a bad wiring harness and I noticed after I got the truck back that the new wiring harness had a wire loom around all of the areas that were ziptied to the engine.

[@paolointhenight]

My 2016 XD just started with those exact symptoms. Its at a shop right now but I'll have to ask them to check this out.

[@peterjennings3143]

Where is that connector located in the engine bay?

[@skylerstringer6893]

Also trying to find this so I can get tension off before this happens to me, he said by metal brackets but a video showing it’s location would be awesome!

[@tannerrich5611]

Well now I'm going to have to find that plug and get something around it to protect it. I love my truck and it runs amazing. I'm getting rid of every possible issue before it's an issue, the cp4 is next on the list!

[@tannerrich5611]

Thanks CFT! I already have your kit from SOR also and absolutely love it 💯

[@caseman91]

So what do you recommend doing about the injector wiring? Tape it up better? Add plastic looming? Thanks for the video

[@CFTPerformanceINC]

Like we stated cutting some of the tight zip tie points cut them and take tension out of the harness

[@caseman91]

@@CFTPerformanceINC thanks, I’ll check mine out then

[@goulartaf66]

All on Nissan! 100% warranty issue

[@Littleoleshorty]

Can y’all put out a video showing all the parts for your EGR delete kit on a motor?

[@CFTPerformanceINC]

All Videos posted

[@jsawyer0617]

🤫

[@jaywhite1850]

How does hydro lock cause enough heat to turn the crank blue?

[@UnicornGuru]

It doesn't. Injectors are dumping fuel constantly and diluting the oil. Engine runs for a while overheating the crank until it eventually gets hydrolocked and snaps the crank. The bluing happens way before the failure not because of it.

[@fixitcorrectly7301]

Love getting these information videos from a company who has taken the time to learn our trucks completely. Appreciate this and have been doing every maintenance tip on my 18 you recommend. I have a question you may be able to answer about mine, it sounds like my truck at 76k miles has a exhaust leak only when cold. is it common that the stock manifolds or turbo gaskets tend to do this on these trucks?

[@joevasquez1776]

Name the sensor it connects to

[@thomasschleis2545]

So, do you recommend dropping the pan and checking the crank if you've had the problem?

[@phantomcreamer]

I've always heard it is from overtowing or not regularly changing oil/fuel filters. So the premise in this video is that it is actually caused by damgae to one of the injectors wiring causing it to overspray?

[@101dbarnett]

Just picked up my Titan that had a two piece crankshaft. I’ll be passing this truck along to someone else before my warranty is up because the transmission is acting up already too but thanks for the insight.

[@UnicornGuru]

Transmissions should have a TSB for reprogramming. Mine shifts fine manually so it's gotta be the ratio mapping in the TCM.

[@kylevanzee1672]

Recently installed new motor my crank wasn't broken but was just as blue as the one in this video looked like middle main bearing failed on mine, I just went over each injector plug no visible bare wires, only 800 miles on this engine 68k on the pickup, runs good but I'm nervous after watching this, recommendations??

[@kylevanzee1672]

I got the motor from Z1 off-road and went with illusion blue products from you under the hood 🤠🤙 that was 20grand all in saving my pennies for a single turbo setup

[@goulartaf66]

Did Nissan ever have a recall on this and fix the problem?

[@SBS1890]

not yet. They will once the NHTSA figures it out.

[@yuliangonzalez8223]

Great info. Thank you

[@jncojoke]

Sucks to say it but I sold my Titan XD because I had cyl 8 injector go out 2x in 4 months. I asked both times that they look at the harness but Nissan said that it was simply an injector failure even though after it was towed in it magically ran fine for them. I let the dealer I sold it to know what had happened and washed my hands of that truck. I drive by Nissan everyday to work and the service area is full of XDs. Wish it would have run forever but I'm not in the business of paying 2/3 the cost of the truck to replace the engine. I put 100+k miles per year on trucks.

[@christopherburns7711]

Which cylinder are seeing this occur the most?

[@msengineeringdavid3148]

Did you not hear him?

[@dexterousx92]

*So would you Say that the 5.0 cummins is a good engine ? Would you recommend it to someone? I really like these trucks and im typically great at maintenance on my vehicles. Rewraping the wires seems like it would solve the crank issue wouldnt you agree*

[@kjemad]

hell no

[@laiethabudubai5990]

So I got one with a 2 piece and can't find a frey really interested in where it's happing since I'm driving another one right now. The harness and engine are still in the truck with the 2 piece I'm gonna pull it apart and check harder. The one in driving keeps rattling loose the valve cover bolts it hasn't run ruff that I can tell but it's obviously got bad vibrations makes me feel like this is an issue

[@phantomcreamer]

Did you find anything out since posting this?

[@laiethabudubai5990]

@@phantomcreamer no

[@gordowg1wg145]

So, fuel wash diluting the oil leading to poor lubrication and bearing failure? Did you do, or are you aware of, oil testing being done on these engines with broken cranks and the results?

[@dustinmann7031]

How many windings does that motor have?

[@CFTPerformanceINC]

what do you mean by windings?

[@gordowg1wg145]

@@CFTPerformanceINC It's a dig at the american habit of referring to engines as motors. Historically, electric cars were much more common than petrol/gasoline over there, powered by "motors", and the term just stuck. It certainly flows better than "engine car" 👍😎 The irony is that in the UK people call cars "motor cars", or "motors" for short, regardless of what's propelling them.

[@chrishorvath9698]

Why isn’t there a recall on this

[@chente9109]

I want to do a single turbo what’s the benefit of switching and how much it cost

[@CFTPerformanceINC]

All info is listed on website.

[@Doms.boostd]

Question for you guys have you ever had a Titan throw a code called p00b7 and how to fix it?

[@CFTPerformanceINC]

Egr is leaking, or coolant tank sensor is going out.

[@Doms.boostd]

@@CFTPerformanceINC must be the egr I replace the coolant reservoir because the don’t sell the sensor by its self lol it fixed it for about 4 hours then whent on again I’m gunna order your guys egr delete kit here soon hopefully fixes the problem🤞🏽

[@PhillytheKid466]

@@Doms.boostddid the egr delete fix it?

[@edwardwoods5977]

Im having an issue of ... the engine seems to run fine. But it uses a tremendous amount of gas diesel. Like 7.5 miles to the gallon somtimes less. Any ideas

[@absolutelyknowbody]

You're in regen. Drive it at highway speeds for a good hour and let the regen complete. You've probably done this by now I'm assuming

[@edwardwoods5977]

@absolutelyknowbody I also used lots of injector cleaner. I bought the truck second hand. It's doing much better. The injection cleaner was key.

[@redin575]

"gas diesel" lol. Be less clueless.

[@edwardwoods5977]

@redin575 sorry but I'm very knowledgeable about engines. Extremely versed in electronic fuel injection and all the sensors. I don't know why I put that. Maybe it was a trap for certain personalities. My diesel engine runs great but there's 3 different ways to have catastrophic engine failure. That could be worrisome. By the time my engine goes it would be $10000 for that block. And I could rebuild it.

[@msengineeringdavid3148]

So you’re saying the harness grounded out injectors 7 and 8 ? Because the ECM would ground the injector what metal is it against?

[@MegaSling]

Excellent video! Worst engine Cummins ever made hence, they discontinued it and Nissan only used it for 4 years. Broken crank is just one recurring problem. Turbo failures, EGR failures and fuel pump failures just to name a few. I had a 2017 and was meticulous with the maintenance but there's nothing I can do to maintain a turbo other than regular oil changing. After replacing about $5,000 worth of stuff on the engine I traded it in. Even the salesman confirmed that they don't get much for these trucks because the word is out as to what a POS the engine is. The diesel tech at my local dealership (they're becoming rare now) told me the Titans with the Cummins where in their shop regularly for all problems states and all those parts mentioned are on back order because of it.

[@CFTPerformanceINC]

motor been made since 2010 ish and still is being made just in military applications in the USA and still being used over seas.

[@SupramanTRD]

Seems like most of those problems could be solved with emissions delete, single turbo upgrade, and running diesel additive for the cp4

[@jsawyer0617]

@@SupramanTRD been using hot shot secret since I bought the truck at 36k and now have 85k on it. CP4 been doing it’s thing with no issues so far!

[@UnicornGuru]

Motor isn't the problem. Nissan was only selling 50k Titans a year and maybe 10k of those were diesels. Not enough sales to support the platform. The motor is used in numerous other applications and is a solid Tier 4 platform. When deleted and tuned, they crank out insane power and last as long as any of the awesome diesel motors from years gone by. Instead of praising this man for finding the problem, you came here to complain. Not cool, man.

[@zytekfan]

I would also recommend running 5w40 year round as the film strength in the summer heat is a lot better than 10w30. Also the misfires and hydrolocking would explain why people say they knock really bad right before the crank snaps.

[@thurlravenscroft2572]

I've been running full-synthetic T-6 5W40 since my first oil change.

[@PitaGibbins]

I'm replacing my '16 Titan Cummins motor with an '18 im ordering off of ebay with 70k miles. i had my crankshaft snap at 104k. it was ezlynk tuned with sotf but i hardly ever went past the +20 tune. I believe the issue was my oil filter slowly leaking oil because after i heard the pop and shut it down, the oil was dripping from the filter and i only drained about 5qt from the motor. Anyway, wondering on the "new" motor if theres anything i should upgrade or check/replace before install into my truck. Any and all info would be appreciated!

[@redin575]

So you didn't check your oil level periodically and destroyed your engine. This is nothing more than operator error.

[@rovidius2006]

Low oil gets hot faster loosing lubricity ,use best lube and filters and change them timely, watch oil temp and pressure, problems usually appear well before it snaps .

[@redrider533]

so is Nissan aware of this? I ask because my 2017 XD PR broke the crank, apparentley right behind the snout, with 39K miles and Nissan replaced the engine under warranty and with the truck Deleted even which lead me to believe this isnt an uncommon problem. Even with a brand new long block i sold the truck because i had no faith in the future durability. but i loved the truck

[@CFTPerformanceINC]

Yes we worked with them since they came out.

[@johnauten6916]

I love the "Tread on them" flag! 🙂

[@atx-cvpi_99]

Just buy the RAM Cummins instead.

[@bige9830]

Faulty injectors and faulty wire harnesses don't cause crankshaft problems they cause piston problems. Issue with that motor as they spin main bearings.And it's the spun main bearings that causes the crankshaft the snap.

[@ericrivera219]

I’m not buying that look at the crankshaft all wear on the journal surface that engine was neglected poor oil weight and long intervals

[@Dieselpwr]

B.S.

[@destinhook3826]

It’s total bs just like their company. the injector wiring is not the reason for these failures.

[@Dieselpwr]

@@destinhook3826 I know it most ridiculous thing I ever heard it’s mostly abuse along with poor quality materials