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On my 2012 6.6L Duramax, the Service Exhaust Fluid System
Second Opinion] On my 2012 6.6L Duramax, the Service Exhaust Fluid System message and light will not clear. I have … read more
Bart
Bart
Master Automotive Technician
High School Diploma
3,020 satisfied customers
WE ARE WORKING ON A 2015 SILVERADO 6.6 DURAMAX AND DASHBOARD
HELLO WE ARE WORKING ON A 2015 SILVERADO 6.6 DURAMAX AND DASHBOARD MESSAGE IS SHOWING POOR DEF FLUID- QUIALITY. TRUCK IN LIMP MODE ONLY DRIVING 10 PMH. WE HAVE RECENTLY REPLACED/SERVICED : FILTER FOR … read more
Bart
Bart
Master Automotive Technician
High School Diploma
3,020 satisfied customers
I have the service light that won't go away, it says 47
I have the service light that won't go away, it says 47 miles until 65 MPH top speed and says exhaust fluid system I need help … read more
HDGENE
HDGENE
10,600 satisfied customers
I replaced the DEF heater but am still getting the Exhaust
I replaced the DEF heater but am still getting the Exhaust Warning on the Drivers Info Center. How do I get that reset? … read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
3,187 satisfied customers
Service exhaust fluid system now message on my dash. no CEL
service exhaust fluid system now message on my dash. no CEL just that message. I have had a new tank, new fill spout, new Nox sensors, new exhaust temperature sensors, DEF tank is full of fluid. … read more
Josh
Josh
Senior Specialist Technician
Associate Degree
40 satisfied customers
I have a 2011 Chevy 3500Hd Duramax 4x4 Dually. Got a
I have a 2011 Chevy 3500Hd Duramax 4x4 Dually. Got a permanent code P207F and P20EE, I have replace the Nox Sensor B1 and DEF Injector Nozzle. The truck is on Limp Mode. Need help. … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
16,931 satisfied customers
I have a 2013 chevy silverado 2500 crew cup. 6.6 liter HD
hello i have a 2013 chevy silverado 2500 crew cup. 6.6 liter HD disel 4x4. runs and drives ok but it yas this message on the dash cluster that makes me worry cause i read that it causes problems.… read more
Expert
Expert
10,440 satisfied customers
Can you still help me with another Vehicle of mine with the
Can you still help me with another Vehicle of mine with the code P21DD on a 2015 Chevy Silverado k3500HD 6.6L Duramax… read more
Gabriel Grey
Gabriel Grey
ASE Certified Master Technician
Associates
1,224 satisfied customers
I have a 2015 late model Silverado 3500 duramax. Crew cab
I have a 2015 late model Silverado 3500 duramax. Crew cab long bed 4x4 drw. 340k miles. I haul hotshot freight. About 600 miles back I got fuel and bulk def from a truck stop in a flood area and drove… read more
Tyler Henry
Tyler Henry
Technician
Automotive service technology
3,065 satisfied customers
Fault codes. GMC 2011 3500HD Duramax DEF light on followed
GMC 2011 3500HD Duramax DEF light on followed by engine check light, Fault codes P2047, P208A, P204C, P205D, U010E. all can be cleared and return at start up. Have removed DEF tank, cleaned system with water, checked wire harness continuity OK, New tank heater, New DEF injector to exhaust, New DEF fluid. Same Fault codes at start up. … read more
robert legowski
robert legowski
2,067 satisfied customers
I get a message that says "do not exceed 65 mph". Truck is
I get a message that says "do not exceed 65 mph". Truck is jacked up high. just bought it … read more
Eric
Eric
Retired
N/A
48,445 satisfied customers
I have a 2015 Chevrolet 2500hd. Service Exhaust Fluid system
Hello I have a 2015 Chevrolet 2500hd. Service Exhaust Fluid system is flashing, 36 miles until speed rated 65mph. I recently had a code for def heater. I replaced heater, temp switch, & def pump. I no… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
16,931 satisfied customers
Service emissions system. 165 miles till only 65mph, 2012
Service emissions system. 165 miles till only 65mph … read more
Edgardo Soto
Edgardo Soto
58 satisfied customers
Def is there a way to reset the default services exhaust.
Def is there a way to reset the default services exhaust. Fluid system … read more
Jerry
Jerry
Service consultant
Vocational, Technical or Trade Scho
13,108 satisfied customers
Have a 2012 chevy 2500 with lml duramax. dash showed
have a 2012 chevy 2500 with lml duramax. dash showed "exhaust fluid poor quality" drained the def tank and refilled with new fluid, and replaced both n0x sensors. did a ruductant quality test with the… read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,521 satisfied customers
THOM I DOT 2011 CH E350 6.6L GIVES ME CODE P20EE P207F AND
HI THOM MY NAME IS EDVIN I DOT 2011 CH E350 6.6L GIVES ME CODE P20EE P207F AND U029D ANY IDIA ON THOS CODE I REPLACE ALL SENSORS AND DPFE MAJULE BAT STEL I GOT MASSEGE PURE COALITE FLUED AND CAR IS NA… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
16,931 satisfied customers
Chevrolet C3500 HD Chas/Cab: I HAVE 2012 CHEVY 3500 PU WITH
I HAVE 2012 CHEVY 3500 PU WITH 6.6 DIESEL IN MY SHOP , TRUCK IS IN REDUCED POWER , HAS SERVICE EMISSION REQ LIGHT IN DASH DISPLAY ( CODES R20E8 & R20E9 ) DEF FLUID IS FULL. NO CK ENGINE LIGHT ON , BUT… read more
Bill
Bill
Foreman/Team Leader
Vocational, Technical or Trade Scho
1,775 satisfied customers
2011 Chevy: trailer..exhaust fluid warning, froze up, parked..GM
I have a 2011 Chevy 3500 4x4 ext cab, used to pull a 30' livestock trailer. Stopped for 4 hours at 5 degres, started up and went 50 miles, got a "250 miles left exhaust fluid" warning, froze up, parke… read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
Associate Degree
2,871 satisfied customers
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

16,931 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,659 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

9,477 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

Technician

3,187 satisfied customers

24 years of experience diagnosing & repairing

Jerry Newton

Jerry Newton

Chevy Technician

2,804 satisfied customers

ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Mike S.

Mike S.

Chevy Mechanic

2,317 satisfied customers

ASE Certified Master Technician

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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