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re: DEF fluid fault failure?

Posted on 12/22/23 at 9:41 am to
Posted by LSU Neil
Springfield
Member since Feb 2007
2520 posts
Posted on 12/22/23 at 9:41 am to
Sorry but could literally be anything
Sensor
Bad turbo seal
Bad or broken air line
Something in DEF system
Something with NOX treatment system
Posted by killedbyindians
Earth
Member since Jun 2022
1186 posts
Posted on 12/22/23 at 10:14 am to
Got a 16 duramax and went in to limp mode yesterday. It was exhaust gas temperature sensor. Damn $60 sensor shut me down. Only took about 20 minutes to fix once I got the part.
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