I put 5 gallons of bad DEF! TANK IS HALFWAY FULL. Does def had a drain plug? Should I fill it up with good Def? I need to fix before engine derates. Thanks in advance
Engine light. Bad quality def. OTR HELP!
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Xenergiserx, Apr 20, 2021.
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You got three choices. Buy a 5 gallon bucket someplace and use a siphon (most pilots have them in my experince) to get most of it out then backfill with jugged def to the brim.
Or you can add bottled def to try and dilute the bad def.
Lastly you can pay a shop.
Otherwise you get into more complicated fixesXenergiserx and Dave_in_AZ Thank this. -
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I would run it to the next place that has a shop then have them code clear it if it doesnt go away on its own, some engine get persnickity about emissions stuff and a code clear will solve it. If the code comes back though it may be a diffrent issue, like a failing sensor.
Xenergiserx Thanks this. -
Xenergiserx Thanks this.
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Xenergiserx Thanks this.
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