Cummins I:SA 0 SPN 3364 FMI 10 Fault: poor quality DEF

Usually it will show up on the display as a def quality problem.
No real need to do anything. Next time you get fuel, put in some fresh DEF. It should clear the problem.

 

You sho

You can drain the def and refill, it’s a 17mm bolt on a Volvo I believe. I would also replace the def filter. Another issue could be def quality sensor which is part of the def level sensor (rare but happens). get yourself OTR scan tool. They come in handy on occasions like these.

 

Or simply don't put water in the DEF tank, or pee in it.

 

So let me get this straight, you are sitting somewhere because some stupid sensor, with possibly time sensitive cargo, like this poor person stuck in Dallas with a similar situation. As an old timer at my kitchen table, I can turn the power off, but really, how, and most importantly WHY, do you people put up with this nonsense? No wonder there's no coffee creamer on our shelves. I was green, but my mentors were a rough bunch, and didn't take this baloney. They found a way to make it work, like a 5 pound sledge hammer to the DEF unit and deliver the load, and make money. It wasn't rocket science. I sit back and think of the "hardships" we went through years ago, and know what? They pale in comparison to what you folks have to put up with, just to drive a danged truck, for heavens sake. I couldn't possibly have an answer, nobody does, we're in too deep, a spiral we can't possibly skate out of, and you are "looking" for another? Don't you see, it will be the same crap, different shovel? I tell you what, if I was looking for a career today, like I was in 1978 , you can bet it sure wouldn't be trucking.

 

Look into the OTR reset tool. Definitely worth the money IMO. You would atleast be able to clear the codes and keep rolling.

 

Everybody’s gotta have the latest and greatest.

 

With that tool you can run a forced regen,might clear it.You can also set the tool to live when its running and see everything that's going on.

Gives you the def quality number and ash load,and all the various Temps and other things.
Then you can check the item,it will tell you the range of the item it should be, and what to do if it's out of range.

I think good def reads 32%.

My truck likes a forced regen about once a month,no idle time,I have an APU.

 

Devil's advocate viewpoint: You put in an AWFUL LOT of very cool work -- remodeling the interior of your current tractor.

With that in mind -- why don't you simply "embrace the suck"....fix the glitch with the DEF -- & keep the machine you have?

If you trade tractors -- how do you really know if/whether the next one won't give you even WORSE problems?



-- L