How does the Diesel Exhaust Fluid DEF work?
How diesel exhaust fluid DEF works within this system is all about chemistry. The diesel exhaust fluid is injected into the exhaust system. Its urea component vaporizes and creates carbon dioxide and ammonia.
Where can I get diesel exhaust fluid at?
Since most diesel vehicles built since 2010 run with SCR, diesel exhaust fluid is available at most retail stores that sell automotive parts and at any gas station. If you’re traveling, a truck stop will have DEF pumps next to the fuel pumps. What if DEF freezes?
What does the exhaust fluid quality poor message mean?
An Exhaust Fluid Quality Poor message can be displayed with no DTCs. The Exhaust Fluid Quality Poor DIC message notifies the customer that the ECM has detected a drop in the SCR NOx reduction efficiency. This PI is to assist with vehicles that have difficulty completing the Reductant Fluid Quality Test
How to prevent problems with low quality diesel exhaust?
Don’t switch products in the bulk tank without thoroughly rinsing the tank with distilled or de-ionized water or on-spec DEF. A closed-loop system for transferring DEF from a drum or bulk tank is recommended so contaminants don’t get into the DEF.
An Exhaust Fluid Quality Poor message can be displayed with no DTCs. The Exhaust Fluid Quality Poor DIC message notifies the customer that the ECM has detected a drop in the SCR NOx reduction efficiency. This PI is to assist with vehicles that have difficulty completing the Reductant Fluid Quality Test
What does Pip mean for diesel exhaust fluid?
This PI is to assist with vehicles that have difficulty completing the DEF (diesel exhaust fluid) quality test and/or clearing the Exhaust Fluid Quality Poor Message. Complete the current SI diagnostic for any trouble codes or symptoms found.
What does low DEF Diesel Exhaust Fluid mean?
So Friday I had the “Diesel Exhaust Fluid Quality Poor Message” pop up on the dash with a 100 mile warning. I restarted the truck with no warning. I drove about 25 miles and the “Low DEF” message came on.
What kind of exhaust fluid does a Duramax use?
I have a 2011 HD2500 duramax with poor exhaust fluid light on. Third trip to Dealer knock sensors and sensors. Not fixed yet 2011 3500 srw. Poor quality def. took to dealer. Said nozzle was clogged drained tank new fluid. Next day light on again. Back to dealer. New tank new pump new wiring harness. 4 days later light back on again Getting tired