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Replacing the NOX sensors in my 2017 Chevy Colorado Duramax
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- Опубліковано 14 лип 2020
- I'm hoping this video could be of help for owners of these vehicles that encounter the same problems.
I've been dealing with codes P11DB and P11DC for almost a year now. The dealer quoted me $600 in labor to replace these plus parts (~$300). I said screw it and went about doing this myself - but there is very little information available about these trucks.
The sensors themselves are by far the most difficult item to get with long lead times typically. Please keep this in mind as you find time in your schedule to do the work.
Sensor PN's
55496922 NOX POS1
55502673 NOX POS2
Both can be purchased from Summit Racing
Tools:
10mm Socket and box ended wrench
Oxygen Sensor Toolkit (Can be rented from your local auto parts store)
Jack
Jackstands
Anti-sieze
Once you are done, reset the codes using a diagnostics tool (can be purchased on amazon)
I haven't found any information yet on specific procedures to clear the permanent codes in the system but I will try this and update on results: www.obdii.com/D...
![How to Clean OXYGEN Sensors [Easy Way]](http://i.ytimg.com/vi/OiZvJ1jv1-I/mqdefault.jpg)
Thanks for the video man. Replaced sensor 1 in about 7 minutes flat and my check engine light is gone. My first diesel and guys like who help others with these videos are awesome. 🤘
Happy to have helped you save money on an easy fix!
I commend you my friend for making videos like this. The dealership is always out to rob people, and in my situation I think they purposely do things. Free oil changes for life in my opinion is a way for them to make things fail so they can make money when you come back having problems. I went and got an oil change at Jerry Smith Chevrolet where I bought my truck, and just a few weeks after having an oil change my truck went into catalyst Regen mode and it will not come out now, so my truck is permanently in reduced power mode.
Thanks! for the tips and tool recommendations, it was easy and saved me $450 from dealer cost.
No problem. Happy you found them useful!
Update: Replacing these sensors and performing the OBDII drive cycle fixed the problem and I was able to pass smog!
What is a OBDII drive mean
Thank you for the video. What is a OBD2 drive cycle on a 2.8 L Duramax
Great video. Shows locations and you explain the tools recommended which is great. This Nox problem when speaking with a service center is made out to be extremely difficult and very expensive, so your video helps to show just how expensive it is to speak with a GMC service department for those of us who can turn a wrench. THANK YOU. PEACE
I’m happy I was able to help you get back on the road without spending more than you need. Take care
I am sitting in a dealership and they just told me they must replace the position 1 NOX sensor. The DTC was P20EE. The cost to replace will be about $1200. Unlike the 6.2, 6.5, 6.6L Duramax engines, the 2.8L, as of March 2024, still doesn't have engine repair manual available to the public. The other engines previously mentioned have manuals offered by both Haynes and Chilton's.
I replaced both, did a regen and code won’t clear don’t know what to do
Is this still the case? The ECM will self test and eventually clear, assuming all readings from test are within spec.
How much were the NOX sensors ?
Did it fix your issue ?
The sensors were around $150 each from GMPartsOutlet.net . One of them took a while to get to me due to being backordered. Replacing these fixed the issue! Hope that helps.
How many miles do you have on the Truck, the same sensor on my ZR2 just failed and I have just under 28,000 miles.
When the sensor failed, I had about 70k on the clock. I never did figure out why it went bad but I would imagine repeated short drives would cause soot to build up due to the sensor not getting up to temp.
@@JohnsonMac cool man thanks for the info.
Hi!
Will these parts fit 2019 Colorado Duramax? I would assume it would....but not sure. Thank you!
It should. I checked and PN’s 24001920 and 24000395 apply
@@JohnsonMac Thank you so much. The part numbers was something what was throwing me off, I can see one on Amazon and the other GM parts. Hopefully they will fit and won't give any errors. Do you know, which PN# is the upstream and downstream?
@@JohnsonMac When you changed your NOx sensors, did that resolved your codes going away? Thank you
does anyone know what size to make sure the oxygen sensor kit has in it ? They have a rentable kit with 7/8 - 22MM in it ?
As long as the kit is for oxygen sensors you should be fine. I'm assuming you mean the tool to remove it?
Yeah the o Reilly kit is a 3 piece kit , but there’s more in other kits
When you replaced the sensors did it clear the DEF poor quality screen?
I did not encounter a message like that in the diagnostics, sorry I couldn’t be more helpful
@@JohnsonMac I have the same issue. Can you provide any insight on resolution?
I wonder if this were deleted, would you need those two sensors?
I don’t believe the would be needed, as long as your ECM is reprogrammed to run without the system
My Colorado is calling a p11db. How do I know what position that one is
It’s been a while but a decent scanner will let you know which sensor is faulty
I replaced my dpf sensor and the countdown to lower speed has not fixed itself, also throwing that code you got (p118b) which what I found to be engine coolant temp sensor and I will be replacing that today
This is bank 2 right?
There is no bank 2 - just bank 1
@@JohnsonMac ahh okay thanks! Having trouble with a friends 2018 3500 duramax, for bank 1 sensor 1. Part 12676706 does not match driverside sensor/module on firewall, just trying to see what I can dig up.
How did you clear the DEF poor quality screen?
@@xmitchawayx I justed placed the sensor and have the message in my screen did you get it cleared
@@rickydostres yea I replaced both sensors and still had the message so took it to the dealer and they did two force regens to clear the message finally