Another CEL!!
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Mountain Pass
Joined: Dec 2021
Posts: 118
Likes: 51
Another CEL!!
Had another CEL come on yesterday. 1st time was about 1.5 years ago. Has the codes read and showed two O2 sensors and a NOX sensor code. Curious if I am causing it. I do add Optilube at close to the correct dosage, read soot could be a contributing factor. Also read where driving in a lot of rain could contribute. I did that 2 weeks ago. Ran the truck pretty hard for 900 miles, hooked to a travel trailer and drove back in very hard rain for 400+ miles.
Grasping for straws I know but it's all good while under warranty albeit a pain to put the truck in for service. In a few months, any repairs will be on me. Don't have a good feeling about that.
Grasping for straws I know but it's all good while under warranty albeit a pain to put the truck in for service. In a few months, any repairs will be on me. Don't have a good feeling about that.
Lead Driver
Joined: May 2021
Posts: 5,848
Likes: 3,473
From: Uh oh, CA
Just curious if you had the 22E04 recall done...? If you did and it's the NOX sensor, it may be covered...
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Lead Driver
Joined: Nov 2005
Posts: 8,466
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PCM/TCM update doesn't change anything as far as the sensor or anything, just updated programming.
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Mountain Pass
Joined: Dec 2021
Posts: 118
Likes: 51
The dealer is indicating a NOx sensor is out. That's the 2nd one in 2.5 years. Would really like to know what can cause this to go bad. Like i said at the first post, I felt like I ran the truck pretty hard for 2.5 days. 900 miles in 12-13 hours without shutting it off, then turned around and towed a RV back is some of the worst rain I have driven in. Obviously not as fast as the going trip but nonetheless, it was a lot of miles in a very short time period under load. All the while, using Optilube XL. Other than towing my RV, the truck doesn't get driven a lot. It has 15,300 miles on it.
Lead Driver
Joined: Jan 2002
Posts: 8,655
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From: Itinerant
The dealer is indicating a NOx sensor is out. That's the 2nd one in 2.5 years. Would really like to know what can cause this to go bad. Like i said at the first post, I felt like I ran the truck pretty hard for 2.5 days. 900 miles in 12-13 hours without shutting it off, then turned around and towed a RV back is some of the worst rain I have driven in. Obviously not as fast as the going trip but nonetheless, it was a lot of miles in a very short time period under load. All the while, using Optilube XL. Other than towing my RV, the truck doesn't get driven a lot. It has 15,300 miles on it.
What you did I wouldn't consider driving it hard for a vehicle even in rainy conditions.
Hotshot
Joined: Jul 2013
Posts: 14,266
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the update turns on nox related monitoring and sets code thresholds that are not in place pre-firmware upgrade.
Lead Driver
Joined: May 2021
Posts: 5,848
Likes: 3,473
From: Uh oh, CA
If you had the 22E04 update and they are claiming it is the NOX sensor, I would bring this up and ask if it's covered under warranty...
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