Just had fueled up def at pilot and parked then this came on...is this simply meaning bad def fluid was put in??..
Is this what pops up when you get bad def fluid?
Discussion in 'Ask An Owner Operator' started by drvrtech77, Jul 2, 2020.
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Could have sensor problems , might not be the def......
PE_T Thanks this. -
Maybe, but it could also be a number of other things causing it. Figure out which code it is in the diagnostic menu, then Google that code along with your truck make and model.
PE_T Thanks this. -
Mine did this a few weeks ago. It was warning my engine would derate as well. I got it to Peterbilt in time. The diagnosis was a bad NOX sensor. Hope this helps.
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Without a code, all we can say is its just a general warning.
PE_T Thanks this. -
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There is a separate alarm (which I have also gotten) for bad DEF.Attached Files:
drvrtech77 Thanks this. -
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I had a check engine light come on immediately after taking a leak. Should I have a urinalysis done?
Atlaw4u, zep1218, Metalicious and 4 others Thank this. -
Id be tempted to run it, and see what happens.
OhNoTerry, D.Tibbitt and tiddlytanker Thank this. -
feldsforever, bzinger and Midwest Trucker Thank this.
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