What does it mean when it says service exhaust fluid system?

What does it mean when it says service exhaust fluid system?

Service Exhaust Fluid System (Tamper) – Displays when a Diagnostic Trouble Code (DTC) sets related to the DEF system that is interpreted as tampering with the system. Exhaust Fluid Range X MI (KM) – Displays when the DEF tank has a range of 1,000 miles (1,609 km) or less remaining.

How do you clear the DEF code on a Duramax?

For a DEF quality code to clear, it has to run and successfully pass the Reluctance Fluid Quality Test. This is a running stationary test done with the factory service tool. It will not clear without that test completing.

What does it mean when it says Exhaust Fluid Quality Poor?

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 DEF (diesel exhaust fluid) quality test and/or clearing the Exhaust Fluid Quality Poor Message.

What does a DEF control module do?

DEF Control Module – This module controls the operation of the emission system. The DEF Module and Engine Control Module (ECM) are in direct communication to make sure the system is operational. ECM – The DPF system and the regeneration process is controlled by the ECM on a Cummins truck.

How does a DEF quality sensor work?

The DEF level sensor, which is part of the DEF sending unit, measures the level of fluid remaining in the DEF tank. When the liquid level is low, the DEF level sensor sends a signal to the vehicle’s ECU which then triggers the warning light on the gauges or panel.

How do you force Regen a 2011 Duramax?

The Duramax engine needs to see steady cruise speed, not stop-and-go traffic, in order to properly enter regeneration mode. You must travel above 30 mph for at least 20 minutes until the clean filter message goes off. Periodically engage in steady speed cruises to insure your DPF regenerates.

Does a 2011 Duramax use DEF?

* The ’11 Duramax incorporates urea injection, or as GM calls it, diesel exhaust fluid (DEF). Bells and flashing lights indicate when the DEF needs to be refilled. If the tank goes empty, the truck is sent into limp mode.

Where is DEF level sensor located?

DEF tank
A DEF quality sensor is mounted on the side of the DEF tank. This sensor detects the Urea concentration in the DEF to confirm it is acceptable for effective dosing (approximately 32.5% Urea).

When does a 2011 Duramax go into reduced power?

When the service exhaust system see owners manual now display comes up will the truck go into reduced power. 2011 GMC duramax. Haven’t … read more 2011 duramax had Def light on dash illuminated and service exhaust system message. I have had it in and all computer checks come up … read more Vocational, Technical or Tra… 2011 Chev.

What does service exhaust fluid system see owners manual now warning mean?

Service exhaust fluid system see owners manual now warning… When the service exhaust system see owners manual now display comes up will the truck go into reduced power. 2011 GMC duramax. Haven’t … read more 2011 duramax had Def light on dash illuminated and service exhaust system message. I have had it in and all computer checks come up … read more

When did the Def light come on on a Duramax?

2011 duramax had Def light on dash illuminated and service exhaust system message. I have had it in and all computer checks come up … read more Vocational, Technical or Tra…

Why does my Duramax 2500 Sierra smell like diesel?

The regen cycle does not seem to be operating correctly…when the regen cycle decides to function in stop-and-go traffic a diesel smell as well smoke will arise from the hood l … read more I have a 2008 2500 Sierra with the 6.0 liter duramax diesel engine.

https://www.youtube.com/watch?v=Rz4O9PXlhco