DEF Dosing Valve Replacement: Kenworth/Peterbilt
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- Опубліковано 3 січ 2025
- We will show you how to replace the DEF Dosing Valve in your Kenworth or Peterbilt truck and save some CASH ! Easy DIY fix !
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Thanks for the video you just saved me a roadside tow and 3 weeks without a tractor. Sitting in a Pilot on a full DERATE because of a DEF sensor error. Road squad was useless! I pulled my doser valve sprayed it with brake cleaner to clean it and I was back on the road in 45 minutes. Couldn't have done it without you 👌
Heck yeah !
Thank you for the the very informative videos they are gold to who ever appreciates what you do.
Thank you
How could I not like this video, it features my 2 favorite big truck mechanics. Thanks Clay and Bill!
It’s Wild Bill 🤣🤣🤣
Great video guys. Straight and to the point. Quick and simple with letting the part and person be seen as done.
Once again, you guys have saved me a lot of trouble and $$$.
Ty so much for your help.
Boy, if have never thought this was so easy. Thanks guys
Great video koon trucking learning a lot about those paccar engines from you all these videos are helpful as always I am trying to learn more about these engines more than ever will be certified soon in this field my dad was a diesel technician he passed away this year he taught me the basics of these engines I will soon get my CDL thanks for the videos and upgrading my knowledge happy holidays and have a blessed 2020
Great video, I will ways appreciate you guys for making these videos.
Our pleasure!
I’m a green ass diesel mechanic that just got a text saying I have to change a doser valve when I get in today so thank you!
Check out our playlists truck fixing, we have tons of videos
Great video soon trucking thanks for educating me about this doseing valve learning a lot from you guys I am planning to become a diesel technician and get my CDL maybe one day I can come and work for you guys thanks God bless
I've been planing the same just wondering where i can get more than just basic HD course one where they even show how to manufacture engines bodywork. gl issac
I see you hit 10,000 subs I'm sure that took a lot of work on your end. It's really nice to see the Koon trucking channel grow.
You guys are thee best
Great video true mechanic ! Good videos for those thinking about getting into diesel mechanics too .
Another awesome video guys!
Thanks I find the videos very informative, and it will save me a lot of money.
Thanks gentlemen. You forgot to mention washing off any metal surface the DEF spills on ASAP. That stuff will damage/ etch metal real quick. Especially aluminum.
Excellent video thanks
Glad it was helpful!
Thanks clay, crazy bill too🤘
Thanks! How do you call those blue handle clamps you used to hold the coolant in the line. ?
Hose clamp pliers
@@KoonTrucking thanks!
Fantastic
Hey Mr. Koon I’m wanting to learn more about wiring, wiring diagnostics, and fixes. I believe I’ve seen you mention you enjoy that. What do you have to teach me and other viewers? Tips, Tricks, lessons, and theory? Thank you for whatever you can share.
Long time viewer, seldom commenter. 😃
This fkn video saved me $600!👍easy peasy! THANKS!
Dang brother 10 subs away from ten thousand!!! Awesome job with the channel man
Great video
Thanks for the info
Wondering what codes you had
Thanks for all the videos you put out. I have a 2014 T680 mx13 and I have been told this valve is stuck open and I have def leaking from the front pipe. It looks like this valve is the underside of the truck. If I try to replace myself do I need to have someone with a laptop do anything with the ECM after it's installed. Currently no check engine light or lights on.
If you don’t have a check engine you shouldn’t especially if it isn’t giving a problem.
You should look in the OTR performance deals. I have a video on it. They are amazing. Always you to clear codes and force a regen and get your truck out of derate modes without spending $4000 on a scan tool. With it and a cheap code reader it can allow you to save thousands of dollars on repairs and be able to avoid high dollar tow bills due to derate
ua-cam.com/video/o10jJYeeZ50/v-deo.html
Thanks for your advice. I will do that. I'm very limited on repairs I can do for physical reasons. Your repair videos and tips help a lot.
Koon Trucking where can I buy the Bosh Scan tool reader?
Great video koon trucking learning a lot already have eight years of heavy duty truck and earth moving equipment experience planning to become a certified heavy equipment mechanic and Get My cdl and become a owner operator thanks for educating me keep the videos coming God Bless happy New year
If you can tell when we have to change the part,and which the issue for it ,thank you for your help
Thank you bro, can you send me the link for the plier that you use for those coolant lines
Here’s the Gearwrench version. They are identical and work the same. www.amazon.com/gp/product/B000O3NACS/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B000O3NACS&linkCode=as2&tag=koontrucking-20&linkId=d76b404f8b4ba544485f36b955858186
I appreciate brother
Great video. At how many miles you recommend to change it? Thank you
Thank God for Wild Bill !!!!
Thanks guys! Really appreciate the how-tos.
There’s a bunch of them in the playlist “How To- Truck Fixing”
We have a bunch of them shot I just have to get them edited and uploaded. If your not subscribed hit that button !
Just wondering if you change the filter more often will that keep the d.v. from failure?
Yes I change mine once a year
Did you need to plug it into a computer after you were done to clear any codes
Yes or to force a regen to disable a derate
Great Video, Just replaced one myself yesterday on a 2014 Peterbilt with the Pac Car.
How you know was the valve
What if the screws break, the stainless 3 screws?
Do you need to unhook the truck batteries when you do this job?
This is a good video but I am curious why did you not inspect the DECOMP tube for crystallized DEF inside? You didn't mention anything about it so I was curious.
Good job boys! I believe those step bolts are a 17mm socket not 15mm. But what do I know..........hahahahaha
It may have been I actually took them off the day before so ..... slipped my brain 🧠
@@KoonTrucking understand, it happens in our business regularly!
In a used truck 2015, 16, 17 or 18, would you recommend Cummins ISX or Paccar MX-13?
Does cleaning help? Do you have to remove def feeder hose and radiator hoses before pulling doser to just clean?
Is the doser valve for a 2014 Paccar (t680) in the same position or is it underneath?
Every three weeks I keep getting poor DEF quality and take it into the shop and nobody after tens of thousands of dollars has been able to fix the problem and now I am $34,000 in repairs on this truck I’ve had for seven months and I’m sitting in front of a Kenworth right now waiting for them to open
Which location is that so we can avoid it!
Thanks i couldn’t figure out how to remove the hoses. My doser now cost $700 in California 😢
Thanks for the all information
How do you get the hoses off the diesel Exhaust fluid injector I know it’s simple, but I can’t figure it out
How did you go about diagnosing? Not sure if i have a bad fuel dosing module or dosing valve.
Was the valve bad or just needed to be cleaned?
Those dosing valves are all junk. Def fluid is super corrosive and it is just a bad idea. It will never work without constant repair costs.
Are these the same part numbers needed for a 2014 t680?
What are the hose crimping tools called. Nifty stuff!!
Have question on my def dosing valve Computor show my scr is bad or klagg I remove part of exhaust pipe next to where dosing valve is connected notice inside quite a bit of fuel in side button of exhaust pipe is that normal or a indication of bad value also lower power by about 25% help please thanks pay lot in dealer still problems thanks
Can the doser value cause exhaust like fumes into the cab if it's a bad valve.
whats the general life expectancy of the doser valve and should you change it as a pm item at a certain interval to avoid on the road probles or just wait until they take a shit
I subbed
Thanks
How do you tell if the dozer is bad?
Where can i get one of those blue handle clamping pliers???
how often do those go bad?
We change our filters one time a year for PM sometimes more depending on mileage. But usually just when the dosing valves go bad change them
how can i send you a pic of a snap on product i have not seen you show yet
Email koontrucking101@gmail.com
At what interval should these be changes
When they fail
Thanks you
Does the cummins in a paccar truck use same doser valve?
That’s actually a cummins doser valve ..... same thing. Same parts. Paccar emissions system is a cummins
Like great job!!
Thx u guys !!!
Can you clean or rebuild a def dosen valve
I doubt it I always replace them.
I have a 2017 579 with the mx13 I’m getting a spn-4364 scr 1 after treatment conversion efficiency. Could this doser be the culprit
So i was attempting to do this and one of my screws broke off where would i find those screws and i wouldnt need to replace anything else would i
How and how often does this fail?
My truck was in limp mode a whole day. My company was neglecting me. I pulled off that part and removed as much corrosion as I could. Problem fixed. I know it will need replaced but it is fixed to get me to my company. What should I ask for as a bonus for saving them a tow bill
That's awesome! Take a look at this to help you in a pinch, its super cheap for what it can do and will save you a ton of stress there's also a discount code for them in the video description ua-cam.com/video/o10jJYeeZ50/v-deo.html
I own a 2016 W9L with the ISX...when it gets cold down to 20s Im getting a red light on the def gage kind of like when you don't have any left in tank...then it shows the service now 2hrs before 40% derate thing kicks in...any ideas or have you ever come across with this?thank you
Thanks great video and the MtD is use in truck. repair how?
I don’t understand ?
@@KoonTrucking the Mountain Dew on the service cart
Willy Queen oh haha that’s Bill’s I don’t drink that stuff ! I hardly ever drink any type of soda. Very rare that I do.
Doser is sitting on what?
Great videos, i have a problem with a t660 2012 paccar, def tank was at half when truck was turned off, the next day when trying to start the engine it did not start and def light was flashing, what can it be?
Going to be emissions related anytime def light flashes. Will need to be hooked up to see what the issue is.
Going to be emissions related anytime def light flashes. Will need to be hooked up to see what the issue is.
We have the same set up on our Cummins engine buses, Alexander Dennis LTD 👍
Thanks gays for the vidéo i got a problem with my truck it Burn 25 or 30 litre DEF for juste 2000klm is it a dosor or some thing else i do not have any code
Liked subbed thank you
Thank you !
Stupid EPA crap. That’s over a 300 part that you could have used to buy some more snap on tools with Clay. Sweet how to video and have a great weekend.👍👍👍
Personally I would have put that to the coffee fund
crystallized shit new technical term I have learned today after watching a few of paccar engine repair I think i'm going for paccar instead of dd15
We have a fleet of paccar engines. We like them.
@@KoonTrucking thinking of going lease with a tractor and so far I'm liking the service video your putting up and seems like an easy engine to work on
@@KoonTrucking A Big thumbs up on that. I had many years using Paccar power plants ( DAF ) when driving in the UK & Europe. And I spec them in my truck now I am over here..
If you had a little music if would be a regular Dosey Doe. ;-)
I don't think mine had water going to it mine is a 2019.🤔
i put one on a freightliner today it was a pain to get to
I have to say everyone knocks paccar engines but at least you can get to most things pretty easy and they aren’t hard to work on.
I think my 389 has stopped using def. this must be why
Use hose clamping tools like that in some shops and they run you off. The reason, it weakens the hoses and makes them crack/burst when hot. Be sure to see your shop policies before using them. My dealer will fire you on the spot.
That's why shop fees are insane. In order to do this either you'll drain the system or take off the the doser with hoses attached then install the new doser. With a second person quickly disconnect and connect the lines on the new doser. Crack the reservoir to release any pressure beforehand. Penske former tech here!
👍🏻
Hey
I am facing a strange problem with def system of paccar mx13. Went to several mechanics and dealers. Spent a lot of money but cant find the problem. Truck shows a fmi18 spn 4364 and when we connect tool it shows aftertreatment 1 outlet O2, data drifted high. So first dealer changed my O2 sensir and cleared the codes. After driving it for 800 miles the light came up again with same codes . Same thing showed up on davis. So the this dealer changed my doser and cleard the codes. After driving for 800 miles the code came on again . What do you suggest ? I got new dpf filters in there too by some mechanic.
Could be a wiring harness issue ?
Don’t you need to prime it
What ENGINE. The make and model of truck doesn't matter when it comes to the ENGINE.
Paccar MX13 that was the entire fleet
Being it was a Kenworth / Peterbilt Cummins makes the aftertreatment so it is the exact same even the part numbers
M
Ни о чем . Тупо замена, это что у вас называется ремонт?
Great video thanks for the help