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CEL. Exhaust Temp code. P11CC

Mdmartin3z

By Mdmartin3z
in Troubleshooting & Recalls

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Mdmartin3z

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Earlier this winter while I was on my way to work my check engine light came up. Luckily for me I had my Banks Derringer to check what code my truck threw. After researching this code and taking my truck to my local dealer, I was informed that my exhaust temperatures were outside of the factory parameters. That they were actually too low. This winter we didn’t see much snow but temperatures were regularly between zero and 15 in the early morning hours. My dealer replaced my exhaust temperature sensor and last weekend my truck threw the same code. I made another appointment with my dealer to have the code checked out. I informed them that it was the same code as before. With only being able to get an appointment a week later, my check engine light ended up going away on its own on one of the warmer days of the week. I really want to believe that the extreme low temperatures and high altitude have something to do with my truck having these issues. Only recently have I been using my engine block heater because of a recall that was out that just got fixed. I also have a Banks cold air intake, but I don’t know if that would contribute to this issue.  Has anyone else experienced this code? 
 

‘19 Silverado 3500HD w/about 14.3k miles. 

 

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  • 1 year later...

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