Most Common Issues Cummins ISX15 (Fuel Pump failure/Aftertreatment Faults/ High Crank Case pressure)
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- Опубликовано: 8 июн 2020
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In this video, I go over common issues on a most common issues on a Cummins ISX 15. Some of the problems include Cummins ISX oil cooler replacement, ISX15 fuel pump failure, EGR cooler,. We talk about low oil pressure and high crankcase pressures. Most of the issues I mention in the video will be for the engine year model 2016 and below. 2017 and above may still experience issues if a good maintenance schedule is not followed. Cummins has redesigned the ISX to be more dependant on its SCR system to meet EPA guidelines. Injecting more Nox gases into the SCR system is what this engine is designed to do. If the engine has high idle times and is being used in a PTO application then there is a higher chance of aftertreatemt or engine faults due to excessive soot build up.
EGR systems are prone to failure across all platforms and Cummins is no exception. Cummins owner may experience failure on any of the EGR related components. This includes the EGR valve. EGR Cooler and EGR differential pressure sensor.
The turbocharger on the Cummins ISX15 is designed to give the driver a quicker throttle response time and to control the amount of Nox gases the engine produces. This is achieved by the turbo having internal veins to channel the exhaust pressure to control boost pressure. Over time soot can build up in between the internal veins causing them to stick or bind. This will cause a turbo actuator to fail, but it is good practice to replace the entire turbocharger if soot build-up is suspected.
Fuel pumps have been updated on newer model Cummins but, if you own a 2016 or below it would be good to update to new style fuel pump. Cummins designed the ISX15 with a high-pressure common rail fuel system. The older pumps are known to fail and could cause major engine damage if operated long. Debris from fuel pump failure can contaminate the lubricating system and damage lower end bearings. This damage can lead to excessive bearing clearance causing low oil pressure and in some cases engine failure.
Check out my other video on the DD platform. Common issues with the DD15 are a great video if you have just purchased or going to purchase a DD15.
• Most Common Issues Wit...
We also have a quick component location video for the DD15 engine.
• DD15 Engine
#cumminsX15 #diesel
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I'd like to address a few items:
1) Fuel pump failures can and do occur with all the 2010 and later engines and can be prevented by replacing plungers/barrels/tappets (currently around $500 in parts and roughly 1 hour of labor) at about 400,000 mile intervals. The newer X15 engines (2017+) have not changed the pump design, they simply changed the oil lubrication circuit so that failure debris shouldn't contaminate the engine. The ceramic plungers were eliminated around 2013. It's highly likely (though there's no official cause) that excess soot in the oil and poor fuel filtration are the 2 biggest factors in fuel pump failures. Diesel fuel provides the lubrication to the pump plungers while engine oil lubricates the cam, rollers and tappets. With the elimination of the ceramic plungers the most frequent failure resides with the cam/rollers pitting and flaking off debris.
2) Engine and Aftertreatment life can be greatly enhanced by regular maintenance of the EGR system. A comprehensive approach to maintaining this system can be found on RUclips and the web by searching for "EGR Tuneup". The basic steps apply to all engines, not just Cummins. Remember, the DPF is just a filter. It doesn't produce the soot.
3) Engine failures, such as rods through the block, can often be attributed to one of 3 root causes:
----- A) Neglect. Excessive idling. Failure to perform needed maintenance in a timely manor. Extended service intervals lead to excess buildup of soot in oil which acts like sandpaper inside your engine. Bypass oil filters greatly help to remove soot, but should not be used to extend oil drain intervals. Oil/Filter changes are best scheduled based on average fuel mileage. 5mpg = 6,000mi, 6mpg = 9,000mi, 7mpg = 12,000mi, 8mpg = 15,000mi, 9mpg = 18,000mi. Or use the formula: (AVERAGE MPG - 2) * 3000 = target drain mileage
----- B) High torque / Low RPM operation (IE: Lugging the engine!). Due to the shorter connecting rod length and inline orientation of the pistons there can be a lot of sideways force applied to the pistons/liners when operating under 1400rpm. The more torque being produced then greater the pressure on the liners (due to the timing of fuel ignition as the crankshaft rotates). Higher engine life can be achieved on an ISX by utilizing higher horsepower instead of torque within the 1500-1800rpm range.
----- C) Bad EGR deletes. So many bad deletes are out there. The ISX relies on EGR gases to fine control fuel ignition timing and intensity. 99% of the deletes do not properly compensate for this (among many other problems) leading to significantly increased internal stress and wear. Which eventually results in component failure.
Thank you for the detailed information.
My employer's mechanic tried telling me the ISX/x15's "arent rated for 2000rpm" and most drivers will lugg them because "muh fuel efficiency". The company is in the financial shitter because it cant keep drivers, and because +60% of the new trucks (all efficiency series) are in the shop waiting for new motors because the bottom ends shat out epically.
do you have more information about these engines sr??
Great info thanks for taking the time out to explain 🙏🏾
Great job; one of the best I've seen. Really appreciate the time and effort put into the graphics, along with good audio! While these issues pertain to higher mileage trucks, it's still great for the motorcoach world to understand.
RV Squared, glad you liked it. We appreciate the support.
Thank you so much for a informative video ... And proving my point of old engines are better an reliable than the new ones...
Thanks for watching. Be sure to hit the subscribe button.
In other words... it's a great boat anchor ⚓️ 👌
Great video👍 ran into dpf issues alot with one of our fleet customers.
Usefull information , yes ! Helped me decide to go with the D13 ENGINE
Glad we were able to help. 🔧👊🏼
How your d13 going for you. Thinking about get 2016 freighter cas
Thanks for this knowledge.
Thanks for making this video, I have a 2015 ISX.
West, thanks for watching. 👊🏼💪🏼🔧
I have a 2016 Freightliner Cascadia with a 2015 IXS, as of today it has over 600,000 miles and only seen a shop twice(when I first got it(68,000) there was a gear that needed to be replaced and just recently the nox sensor.).I try to maintain the oil changes as well as any other maintenance and thus far I have no complaints about the engine.I appreciate the heads up.Great video.
Rufus, thank you for sharing your experience with your ISX15. Please be sure to hit that sub button. 💪🏼🔧👊🏼
Rufus Smith , what kind of oil you use on your ISX?
You just made me feel better Rufus I was almost worried with all this negative feedback
Great lesson thanks Adam
Love your video, and like how you throw up the pictures, well done!!
Thank you so much!
@@TATEXPRESSINC Anytime!!
Great video I love it thank you for all the info.
Thank you I feel much better with the information
Good straight down the line mate
This definitely explains alot, especially the dpf clogging issues, my truck does a passive regen about twice a day, it seems a bit much.
Matt, thanks for your input. Two regen a day is excessive. Depending on your mileage you may have to service the DPF or DOC. I would recommend getting unit checked out for proper operation.
You should stop using the DEF at the pump and only buy the ones off the shelf.Its a reason that DEF at the pump cost 2.00 a gallon and on the shelf at Walmart it’s 2.5 gallons for 13.00.
Since I stopped using DEF at the pump I’ve only had 3 regen in the last 5 Months💪🏿
Theirs these two sensors that get covered in soot that you could clean
@@logic9869 yeah right 😂
Mine was doing that for a long time. Had it at the shop a few times for it and finally figured out it was the DOC. It’s been regening every 36 hours on the mark since I’ve had it replaced a couple years ago.
Good info that is a great resume for the ISX Cummins thank you...
Jhony, thanks for watching. Thank you for the sub. 🔧👊🏼💪🏼
@@TATEXPRESSINC maybe a silly question: when you say 2016 and below, are you talking about the year of the truck or the manufactured year? Because I’m looking at a 2017 international manufactured jul-2016
Great video brother i had to watch twice!!!
Man I love your videos. Awesome.
Really helpful info. Keep up the good work.
Cheers!!
Thanks for watching bro! I make the videos for guys like you. Be sure to watch my live videos on sundays. I answer questions during the live. If you hit the subscribe button and notification bell it will notify you when I go live. Be safe out there buddy.
I’ve binge watched quite a few of the videos. It’s been 5 years since I went to school and just got a job offer at a Freightliner dealer. It’s been good to get some refreshers. Strong work for sure. Who’s the Airmen in the picture? :045
I appreciate the support and I am happy to be able to help. The Airman in photo is me when I was 19yrs old.
@@TATEXPRESSINC Roger that Airmen. We’re you a mechanic in the Air Force?
Awesome information and great video 👍
Glad you liked it!
Thanks info TAT very helpful
Glad it was helpful!
Tanks for all the videos
Thanks for watching Edwun.
Thank you. very very very good information
Thanks for watching TJ
Hey very helpful information, but I have a question what are the more probable causes of alot of fuel getting into the engine oil on these isx-15 engines. Thanks for the help.
THE NEW VGT TURBO ON CUMMINS TURBO BEFORE YOU INSTALLED IT YOU HAVE ADJUSTED IT NICE VIDEO YOU KNOW YOUR THEORY COOL
Great video Adam!
Paul, thanks👊🏼💪🏼
Excelente vídeo
Good explanation
Great video man very informational, much love from Newfoundland, Canada 🇨🇦
Glad you enjoyed it!
This really opened my eyes about the International trucks equipped with the Cummins ISX15 engine. What’s your opinion on this engine vs a MP8 in the MACK?
Hello brother, I have a question I'm seeing low mpg on my isx15 recently. Where should I start looking first for repair?
I’ll stick to my 3406B! 👌🏼
Good idea. Be sure to subscribe.
I have a big cam Cummins and a n14 cummins
TAT Express Inc.
u said in 2017 most issues have been updated. Do u mean in the X15?? Cause 2018 trucks got 2017 X15 cummins, no?
@@jopete681 you had the best, I worked for Cummins in those years, no electronic bullcrap
@@jopete681 whats the big cam cummins
That was awesome video..👍
Can you make a video about volvo d13 engine ✌
Thank for the info I have a 2010 387 and it’s throw a rod through the block,but my question is the engine was replaced and now I have no cruse or engine brakes abs light stayed on.can you please give me some advice on how to get it fixed
This guy is great! Thanks for the vids!
Thanks for watching!
Great video!
Thanks Truck Yoo, keep up the good work
Thank you
Bought a 2012 w900 with 500k on it the engine had everything you mentioned in the video go wrong we removed the EGR and DPF system after we had to rebuild the engine put a fixed geometry turbo on it a new set of injectors and tuned it thing ran amazing got good fuel economy and never gave us anymore problems
Kirby, Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
Man, that's like engine rebuild.
Thank you for the good information... But how about cooling mixing in the fuel, where is that problem at?
Everette, injector sleeve seals can cause fuel in coolant. Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
Hey Adam I just want to know is it okay to buy a 2016 or lower year Cummins engine because after watching this video and other videos there's no clear yes/no answer apart from the problems it has?
What about Freighter Cascade 2016 is updated with system we really need your advice
Can you do a similar video for the Cummins X15? Not a lot out there.
Great knowledge!
Great video, I was going to ask you if it's possible for you to shoot some video about Cummins X15 efficiency model!
I think lots of people would appreciate that!
Thanks!
Good idea. Thanks for watching. Be sure to hit the sub button
@@TATEXPRESSINC How are u!buddy,my truck is 2015 Peterbuilt 579 cummins isx,auto transmission,it has 842400kms on my truck,I change oil every 15000miles,3gallons oil consumption,I know it is a lot.what problems cause that happen?i really appreciated for ur input
Wow amazing video
We appreciate the support. Be sure to sub.
Good video
Good video!!thanks just one question?
What is good on this engine?
My 22 Cummins engine blow due to injector’s failure right on 33000 miles.still under manufacture warranty but they have avoided all the warranty and red flag the truck for nothing.I’m in process of taking them to court!
Hey Adam I just came across your video once again. You know I’ve been thinking we got a 2017 389 Pete Isx15 but obviously the engine was build on October 2016.
Now is that truck updated? Or it has to be a 2018 truck witch will have a 2017 built engine ?
Thanks again
Great video man, it’s very informational i have a question, my ISX15 flashed the code 2265, any recommendation?
Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
Thanks 👍🏻
Any solution on what keeps blowing my fuel pump fuse as soon as the truck is switched on?
How do you compensate for EGR pressures when deleting? Looking at a 2013 isx that has been deleted but how do I know if it’s been done properly to compensate for egr pressures? After watching this dunno if I want a Cummins isx sounds riddled with problems.
hey there, in the 1970s i worked for Cummins in Australia, I rebuilt many of the 855 engines and 1710 v 12's, Since then Cummins has a million electronic sensors, my question, how long would it take me to get up to speed, troubleshooting and learning electronics, thanks
Great info
Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
Can you explain why cummins oil pan has 2 plugs. The second sump has a half gallon oil and due oil change I have always watch that from this sump oil is dropped. My home shop refuse to open second plug (We never doing that). And by Petro or TA guys sometimes forgetting. Just what's the point for this curve?
Do fuel pumps on the isx15 year 16 get weaker the more miles it gets or does it just quit working mine runs better when the tanks are full so it doesn't have to draw as hard as it does when thier bellow half full or less
I wanted to come to ur shop on Monday at 12:00 but they changed the load on me I ended up going to loareado tx instead of Dallas. Hopefully, I will get a load next week to Dallas so I can stop by the shop
Asmare, I understand. What type of work you looking to do? Any issues?
My oil temperature on flat road is 220 but as soon as i start climbing it goes upto the redline at 250 is that normal? And my truck regenerates twice a day. I have gotten my dpf filter cleaned by pressure wash at a local shop. Still no help.
Love my dd15
Very informative like your videos I’ll keep listening I do have a question what’s the best rpm to run it at when I’m on my 10hr rest break ? I usually keep it at 900
Thanks for watching. Long idle time or PTO operation is not recommended for ATS. Sorry I know it’s tough but I would recommend an APU to avoid high idle times.
I’m looking at Apu now what’s best to run it in the meantime just normal idle ?
@@tedsweetman19 not idling at all get u a generator and s portable ac
@@jaykong2929 +1 on that I used a small portable genset to run my A/C and M/wave to heat my food. Now have an APU but to be honest its been more trouble than the Genset.
@@anthony1636 I did as well I got a thermo king evolution so far so good
Having a Scr temp sensor issue. Says Inlet and outlet temp sensors are shorted to a higher voltage. Can’t seem to find an issue in the wiring. Where else should I look. Scr and Def all cleaned out. All new sensors. Any thoughts.
Hey I have a concern about the maintainance of isx15 heater inlet hose and replacing those hoses feeding into the sleeper berth. There is a valve on the heater supply line that is leakinf coolant. A lot of coolant. I cant tell if its from the valve or an aged tension clamp. Is this a part that typically needs replacement or repairing by secironf the hose with a more durable hose clamp. If i could send pics/vids here I would.
Initially I had a leak at the bottom heater inlet line feeding into the engine. I replaced it with the update part and leaking started happening elsewhere in the system( the top heater line coming from the engine supplying the sleeper and it the area where they valve on that same line is introduced) How should i go about repairing it? I'm filling up over a gallon of coolant a day!!!$$$ because of this leak
Would having the engine deleted help with those issues or even eliminate them?
Great info brother,
Can you make a video about common issues on Detroit S60 12.7? Thanks
Yes, I can. Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications. 💪👊🔧
No problems lol jk
Ron. If you have a 2003 or older s60. You have one of if not the best diesel engines out there. Pre emissions s60 👍👊
Hello i have Peterbilt With cumings isx 2012. So after 8000 miles oli go from maximum to minimum, so is that on all cumings engine or my engine is bad? And also i drive heavy loads around 40k, is that bad for this engine ?
Hi buddy, i have a 2014 cummins isx15 , recently did an overhaul with CUMMINS parts, after 9,000 miles it started to leak from the turbo manifold i dont know if it is oil or diesel, 99% when idling ! Have you ever seen some like this?
So don’t buy an ISX engine prior to 2017?
Ligitimate question… currently shopping for a new rig, and I’m looking at the ISX engine for either the International Loan Star or picking up a Kenworth T680.
Hey bro my engine looks like it's burning too much oil but there's not sign of leak, oil pressure it's normal and the truck seems to be riding normal, any suggestions
What causes water come out of the air to air on the driver side of the Cummins isx 15 or x15 2019 kenworth w900l
Hey I have a 2010 international with cummins isx, the truck was staring and running fine i did an oil change as soon I started at the shop it idle a little rough but I though it may got some air and it will go away but it being giving me problems to start, the rough idle never went away until I tie the top cap in the fuel water separator, but the hard time to start keep happening, like 2 days ago I crank it 5 or 6 times for over 15 secs and would not start I took fuel out of the tank and put it in the fuel water separator and It did start and ran fine any idea what it may be?
my 2015 cummins isx15 engine through a rod at 283k miles with no alerts on the dash at all and oil pressure read normal until i suddenly lost power on the highway...anyway now cummins is asking me why i ran the motor at 2750 rpm's for 30 seconds according to ecm ....of course my response was...i didnt the gauge only goes to 2500 rpm's and also the motor has a rev limiter...my question is....is it possible to run that motor at those rpm's?
I own the big fcar scanner and the smaller version as well what small scanner do you recommend I'm talking like $1,000 and under thank you
ISX871, ISX152250, ISX152350. Except X15. Have a Crankcase filter that can be updated to a non-serviceable element. P/N 3691476. Love your channel!!! If it comes to a rebuild, you get Anti-Polishing rings to cut the carbon off of the top off of the pistons to prevent liner polishing and oil consumption.
The new L9 has that filter I don’t like it via the older isl had a serviceable one.
Crankcase filter how often you have to replace? Thanks
Good video!! What’s your opinion on the ISX15 2017 ?
thats what im trying to find out as well my buddy swear by the 2018 he claim they have upgraded he def system
Can you also do a video on the signature 600
got a truck in my shop, the oil pressure slowly goes down until the stop engine light comes on, I replaced the oil pump and works fine for about 200 miles, any suggestions??
I worked at a truck shop for years and when I decided to buy a truck it has an n14 and I could barely stand to watch this video
Thanks
Taras, thanks for watching. 👊🏼🔧💪🏼
I have an isx 600 series in a 1999 dump truck .. issue I am having is it randomly dies with no warning any ideas? Fuel pump has been replaced twice
I’m buying a 2019 international LT 625 IXS cummins . Miles 604k bad buy or good?
Good thing I saw this before buying a truck with this motor 2012 isx with 240k I’m sure it hit a million plus good thing my old reliable 12.7
The updated pump is shorter than the older ceramic versions. You'll need to get the lines and braket to make the pump fit. Cummins I think has a kit for that too. The new pumps also fail. At 250k have them checked you don't need to remove pump. Remove the cyl head and pull out the plungers and replace with new ones and a new cyl head gasket. What I've seen in our trucks is the pins that keep the plungers straight inside the pump body begin to fail. This allows the plunger to rotate in the cyl of the pump. That's a big no no. The bottom of the plungers have a roller that is meant to only operate in a fixed position. If it turns it wears and eventually fails, imagine going down the highway in your car then turn your wheels 90 deg to the right and keep driving straight that's basically what happens to the roller on the plungers. You won't get any codes till one of the plungers can't pump enough fuel and you'll get a low fuel pressure code, can't remember the code # right now. Engine will derate but keep running. DO NOT KEEP DRIVING because if it's the pump you'll be running on very contaminated oil and an eventual end to the engine. Also like a few have mentioned clean the IMAP, DEF INJ and regen Doser inj. We do it every 6 months. We looked at the EGR differential sensor and the DPF differential sensor those were ok . Hope this helps
My dad has a 2013 T660 ISX, It can idle for hours and stay on.. But 30-45 minutes after start driving it will start shaking and dies or if you if you put it on neutral it stays on... Any idea? Thank you!
yea I had all those problems on my truck spending all da money 💰 in the world to keep it running , until one day I was broke and my homie and I went to the after market store and bought the after market parts , my truck is running good after that thank God I was deep broke in debt by now I am back in track thank God....Cummins sucks after market parts will lift your truck up......
Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
When is best to change oil every how many miles?
I have a 2015 w900 with a cummins isx 15 & my fuel pump imploded. I have metal shavings in my oil pan now. I got a fuel rail light & before I could get it looked at, she cut off... looking for a new motor. Thank you Cummins
You my go to guy
Were we work we are specialized in detroit volvo cummins and multiple other brands only engines and i believe rods going the block on isx isnt from soot build up and more cummins cheaping out on the themselves mesure the thickness of the rods and bearings conoared to a detroit and also the size of the bolts also cummins has a shorter stroke wich makes it higher reving but puts lots of stress on the rods just what i think thanks for the info
Nathaniel, thanks for the input. Be sure to subscribe. 🔧💪🏼👊🏼
I am losing power on my Cummings isx what should be checking for??
Best problem solver get an older engine and truck
Thanks for watching and thank you for the support. Make sure to subscribe and turn on notifications.
Can you do a video on the topic "Deleting emissions".
Thanks bro. Great video.
ruclips.net/video/NBTnLxUiOHk/видео.html
2016 and prior are very prone to diesel dilution. Anything over 250 hour oil changes is definitely asking for trouble.
Brett, thanks for the input. Make sure to hit that subscribe button. Thanks for watching.
I have a 2017 isx with 55200 miles im only getting bout 6 miles is that good bad or ugly? Where can I get more info bout this engine
Do you have any idea about 2008 Cummins engine 780 please update me
The video is really informative .I have Cummins x 15 and mine start without a problem even after 72 hrs of inactivity but does hesitate or won't start up sometime right after driving for 6 h or longer and shutting down for few minutes .it makes cranking noises but does not start up so we run a computerized diagnosis and ended up changing coolant sensor and fuel filters but the same problem persist.
Any suggestions ???
Are you getting any check engine lights? If not, I would troubleshoot fuel rail pressure
@@TATEXPRESSINC yes engine has been on constantly
Do you know what codes you have?
After the computer diagnosis,they told me it was coolant sensor and I had them taken care of that then wires pop up
I have a isx I have no codes but under a load want take the fuel but black smoke ease up off the acceleration it picks up
Hey yall i got a 2001 cummins ISM. The oil starts out at 65 psi then drops into the teens after warming up and it drops at the filter head Ive ruled out pump, guage, leaks, injectors, jakes while everything on the valve train looks good. I had a 12 hour diagnostic that ensured the internals had normal ware. I recently had the injectors in cylinder 2 replaced as well as a rocker arm on the same cylinder replaced. I used the truck for two days and had to bring it back to the same shop. The mechanic informed me that there was a wire broken on the number 2 jake assembly. And now insists that it wasnt from the work they did but dosent know whats wrong with it please any suggestions will be greatly appreciated
Do a video on the rear main seal
What about the new X15, are you guys seeing any issues yet. What are your thoughts on the new Cummins emissions system. Thanks great channel 👍
Trip, we see less problems with newer trucks. Keep in mind high idle times and PTO usage can cause more soot build up.
I wonder if a lot of these same concerns go for the B engines, at least in regards to after treatment systems,
ATS are the same, their goal is to cut down in Nox. Thanks for watching
Any problems with the 2016 Cummins isx15