Not a semi truck per se, just a troublesome diesel 4wheeler. Need to trace a leak and do some applied hillbilly engineering on it to get rid of emissions codes and pass CA smog without steep 4-digit repair bills...
Tried to google, but the dang thing thinks DEF is too short a term (? Or common? Whatever, who knows) and ignores my attempts to search for DEF UV dye.
Thanks
PS 2011 diesel BMW, has a bunch of dang sensors, including at least one for DEF level and one for DEF "quality" (not enough in tank or wrong fluid detected = no-start condition countdown, 50-200-999 miles depending on "severity")
Is there a UV dye you can use with a DEF system?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Adieu, Sep 22, 2019.
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I think they sell the dye by itself.
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I don't know of a dye. But if the DEF is leaking anywhere you should see it crystalized where ever its leaking.
Heavyd, buddyd157, speedyk and 1 other person Thank this. -
Car has other issues too (power steering gone - actually what gave me the UV dye idea), no current tags, charging system is buggered --- so drive around a bit then look drive around again look again isn't all that simple... and the dang thing sits too low to look under and has too few jack points making putting it on jackstands a whole long game of multi-jack tetris
Basically its a pain in the ### lol -
Thing is I'm not sure which if any of the dyes are ok to use with the DEF system. Don't wanna mess that expensive bugger up (...any further) and definitely wanna avoid triggering the WRONG DEF FLUID sensorspeedyk Thanks this. -
Make some ramps out of wood. Check YTube.
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Every time I try to service anything on it, I start to appreciate my simple, low-tech, tall, huge frame, jack anywhere or just crawl underneath without any jacking Ford truck.... -
sell the car for parts, or whole, AS-IS AS SEEN recoup nearly all your money back.Intothesunset Thanks this. -
Heck, cross over in NV that doesn't have such draconian emission laws, sell it, buy another vehicle and walk away with a few dollars.
Last edited: Sep 23, 2019
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