2018 Silverado 2500 DEF injector replacement

2018 Silverado 2500 DEF injector replacement
GM Part#12688993
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[@michaeldrollinger4954]

Can't believe you don't have more subscribers thanks for the great content you're helping keep my truck on the road and putting more food on the table. I ran into the same issues on my Duramax, just fixed my truck on the side of the road thanks to your videos, keep up the good work..

[@CFarmer]

Thank you, that means a lot. I'm glad the videos help and I'm glad you got your truck going

[@chadmilan5181]

I must have your trucks little sibling. A 2018 Duramax. I’ve had the identical issues. I watched your video on splicing the #4 injector wire and was very helpful. Saved me $950! 🤑. Thanks for taking the time to do this. I know it can’t be easy, but it’s much appreciated. I hope I can pay it forward. Maybe I’ll start making some construction videos 🤔.

[@stevelaycock44]

Excellent thanks. Going to do my 2018 this weekend. Have 213000 miles. And still original brakes!!!! Doing the NOX position 1 at the same time thanks again.

[@CFarmer]

Thank you, i hope it goes smooth and the videos help

[@Dentprotony]

Did my injector today. Not bad of a job except for coolant bath and the electrical connector 👍 fixed my check engine light p249d was the code

[@TylerPeterka-in8cq]

how'd you get the band back on? thing is driving me insane doing it in the cold of the midwest right now

[@Dentprotony]

@@TylerPeterka-in8cq just get that stupid inner clip out and junk it, then put the clamp on without bolt, then position it so you can access the bolt easily, then run the bolt in. Hopefully it be easy for you as it was for me, worst part was coolant bath

[@TylerPeterka-in8cq]

Thanks! I fought with it for about two hours and said screw it as having the injector flopping around while trying to hold the clamp together was not going very well. I'll try connecting the coolant hoses to see if that help stabilize it.

[@Dentprotony]

@@TylerPeterka-in8cq yep get it completely in and then throw the vband over it

[@jacobpitman6415]

Good stuff. I appreciate it. I have a 2018, but slightly different issue. Very good info

[@CFarmer]

Thank you, hope you get it figured out

[@user-sc2wp1td8r]

Thanks for the heads up

[@stevelaycock44]

Excellent thanks. Going to do my 2018 this weekend. Have 213000 miles. And still original brakes!!!! Doing the NOX position 1 at the same time

[@donttreadonme2171]

Mine is doing the same thing. Nox 1 and closed loop flow too low. And white exhaust. What did you do to fix yours.

[@CFarmer]

After i changed the def injector mine straightened up. Pretty sure the def injector was stuck open

[@robnewell-rh8vt]

Great video thanks

[@CFarmer]

Thank you

[@pushcraft]

Thanks. Much help

[@CFarmer]

Glad the video helped

[@BadPanda93]

First things first, I love your channel and it’s helped me with multiple issues with my Duramax. But recently I replaced both NOX sensors and had it reset at the dealer. After I got it back, it threw the P20EE code at me and that code only. Have you had this happen? Any advice? I’d hate to have to bring it to the dealer because they had it for a month in the past. The dealerships here in Nashville never help me much… Anyway, as of right now the truck runs perfectly fine, but I’m stumped as to why only that code popped up. From what I’ve seen it usually pops up with a bunch of other DTC’s. Any help would be appreciated!

[@PlebeRF]

thanks for the great videos, what codes were you getting to replace this injector? thanks

[@colliganfrog]

What codes are you getting? I had P026D injector quantity too high. Replaced MAP sensor and added a spacer. CEL came back then replaced NOX. It’s been good for the last 3 months or so then CEL again about a week ago with code P249D Closed Loop reductant infection control at limit -flow too low. Everything I’ve read is pointing at the DEF injector as I had ADTC’s : P20EE NOx catalyst efficiency below threshold.

[@brockwaymotorssports675]

did you get your nox sensors relearned i was getting a code for my downstream sensor replaced it now getting more codes and upstream nox code

[@TylerPeterka-in8cq]

I know thus is old but how did you guys get the v band clamp on?

[@chadkelley5523]

I enjoy watching your detailed videos. Have you encountered P026D? I've changed the Map sensor, put on a map sensor spacer, changed fuel filter, added injector cleaner and I'll clear the code just for it to come back a few hundred miles later... I've read that it could be NOX sensor, but your NOX change video had a different code for that.

[@CFarmer]

I've never encountered that code but I've been looking into it. Silly question but do you ever hear a Suction noise when you pull the fuel cap off? you may have seen it too but I'm reading there is a bullied on the vent tube stopping up on the fuel tank collapsing (first I've heard of it). One person said they heard the addiction then started getting the code and loosened fuel cap and code went away. 🤔 would be something inexpensive to try if you haven't already

[@chadkelley5523]

@@CFarmer Thanks for the reply, but I've loosened the cap and it's only holding on by maybe a thread..... I've read forums and about replacing NOX, Map, dealership replacing fuel pumps, injectors, but I don't think anyone has really pin pointed the problem. Maybe the new map sensor could be bad, but I don't think so. Seems to be running fine and not burning more fuel so hard to tell. My blue driver reader says P026D "Fuel Injection Quantity higher than expected".

[@CFarmer]

I'm not really sure but I'll ask around and keep reading. Let me know if you get it figured out

[@jflester5863]

Thanks for the videos. I took mine out to do the injector test and all seems fine. Is there a seal on the injector where it goes into pipe? Mine just had some black build up on it but didn't look to have any kind of a gasket. Seemed odd to me. Thanks

[@CFarmer]

Good deal. I don't remember there being one on there

[@skylernestor3326]

What side of the motor is it located on?

[@Muatasim80]

Thank you for this video. I just have one question. Does it matter if I swap the cooling pipe in and out. I have just changed mine and still have service emission system. I thought maybe by mistake I swap the cooling pipe

[@CFarmer]

I wouldn't think so, but I'm not sure about that. I would think as long as it's flowing through it should be ok. Are there any new codes?

[@frankmahomar1514]

How can I clear the emissions problem see owners manual out if my dash

[@CFarmer]

I can usually clear it with a scan tool but it will come right back if the codes come right back

[@jacobrowley8283]

Did you have any N0x sensor codes along with the def injector code? I’m having similar issues with my 18’

[@CFarmer]

I did, i was hoping the injector was causing my nox code but i still had to change nox. No codes or issues now. That's been about 2 months ago

[@jacobrowley8283]

@@CFarmer awesome thank you so much for the info!

[@CFarmer]

Absolutley, my code was P249D... there were some others but that one was consistent. I also have a video on changing the nox sensor

[@jlui1610]

@@CFarmer did u have reset the code or did it go away on its own p249d

[@CFarmer]

I cleared it then it came back then went away on its own

[@mondo9.2.5]

at how many miles did this happen to you ? and any other issues with your L5p ?

[@CFarmer]

I bought my L5P with 18k on it. around 40k a EGT sensor went out but was covered under warranty. Absolutely no issues until 201k then I replaced #7 injector connector. then at 217k I replaced the DEF injector and then at 221k I changed the position 1 NOX sensor. that's all I have done to it and have 234k on it now. I am happy with mine. I have worked this truck steady for over 200k miles running all over the country. overall I am very happy with mine.

[@mondo9.2.5]

@@CFarmer wow thats amazing and good to know thanks man mine bearly hit 20k yesterday still fine fingers crossed love it so far aswell great truck hope nothing to serious pops up so far only have taken it in for a few recalls one was the plug one for dpf frequency and then one for incorrect data files on the ecm and an airbag recall for the glovebox on passenger side

[@CFarmer]

@@mondo9.2.5 I've had the recall for the block heater and the DPF frequency but I've never heard about the air bag one or data files. I really hope you have good luck out of yours. I wouldn't trade mine for anything else

[@dclmac]

Was one of the codes P20CB by any chance?

[@CFarmer]

I caint recall. It's been quite a while ago but it doesn't ring a bell

[@michaelj1967]

I just received the same code you asked about P20CB, did you ever figure put your issue?

[@rdrcktgixxer]

Just changed mine. That clamp is the biggest POS. What ever Engineer decided to put it there needs to be punched in the throat.

[@CFarmer]

Agreed

[@curtishoward5584]

The red tab you broke isn’t anything it has to have! It’s simply a saftey pin. The connector release button cant be pushed with out pulling the red tab out some. If it’s gone the plug will still lock and stay in place. Just won’t have a safety.

[@CFarmer]

I'm learning as i go. The older it gets the easier those safety clips break