Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy

THOM I DOT 2011 CH E350 6.6L GIVES ME CODE P20EE P207F AND

Customer Question
HI THOM MY NAME IS...
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 NAT GOING MOR THEN 55MPH
Submitted: 2 years ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 2 hours by:
11/14/2015
Chevy Mechanic: GM Tech (Cam), Chevy Technician replied 2 years ago
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29,659
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified

HI there, IA m Cam. This could be a fluid quality issue or even an injector issue. The 2 codes have this PI which is simply information.

#PIP4991: Duramax Diesel Exhaust Fluid Quality Poor Message DTCs P207F P20EE P2BAD - (Jan 13, 2012)

Subject:

Duramax Diesel Exhaust Fluid Quality Poor Message DTCs P207F P20EE P2BAD

Models:

2010 - 2012 Chevrolet Express

2010 - 2012 GMC Savana

2011 - 2012 Chevrolet Silverado

2011 - 2012 GMC Sierra

Equipped with the 6.6L Duramax Diesel engine RPO codes LGH and LML

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A dealer may encounter a customer concern of the “Exhaust Fluid Quality Poor” indicator coming on. Diagnostics may show DTCs P207F, P20EE, or P2BAD have set. “Vehicle Speed Limited” message may be shown on DIC.

Recommendation/Instructions:

Complete the current SI diagnostic for any trouble code or symptom found.

During diagnosis of a P207F P20EE it is important to check for any diesel fuel quality concerns. The diesel fuel contamination may not be bad enough to cause a noticeable engine drivability condition, but may increase NOx levels, and induce P207F, P20EE, or P2BAD to set.

Take a large fuel sample from the fuel filter drain. Fuel samples inspected for this condition has not shown to have heavy contaminates or water. The fuel may just look different in color when compared to a like sample.

Question the customer about where they are buying their fuel, and if they have their own fuel source. Check the API of the fuel and compare to known good sample. Use the SI document for "Fuel Specific Gravity Testing". If the sample taken from the vehicle has the same API and color as the known good fuel sample, continue with the current diagnostics for P207F and P20EE, and repair the vehicle as necessary.

If a fuel quality concern is suspected, the vehicle should be evaluated with fresh clean fuel before attempting repairs.

Note: It is possible for the customer to have access to off road diesel fuel with sulfur content higher than 15 PPM. If off road diesel fuel is being used, evaluate the condition with known good Ultra Low Sulfur Diesel Fuel.

Note: After the fuel has been changed use the tech 2 to complete a Diesel Particulate Filter Service Regeneration, and a Reductant Fluid Quality Test. These functions will purge the SCR/DPF assembly of contaminants.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

u029D is a loss of communications with NOX sensor 1 which is the NOX sensor in the turbo.

Ask Your Own Chevy Question
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29,659
29,659 Satisfied Customers
Experience: GM Grand Master Technician 2007. 14 years experience.

GM Tech (Cam) is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

29,659 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 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

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,918 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
I'm at work idiling. And the clean exhaust filter came on my
and the clean exhaust filter came on my 2009 diesel how do you do tbis … read more
EricFromCT
EricFromCT
Auto Technician
3,939 satisfied customers
Exhaust fluid light 2011 gmc minus 9 degrees this morning
exhaust fluid light 2011 gmc minus 9 degrees this morning does this freeze … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
I got the “clean exhaust filter now” message two days ago
I got the “clean exhaust filter now” message two days ago and then it went away … read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
2,002 satisfied customers
The LOW Level Diesel Exhaust Fluid notice will not go away,
The LOW Level Diesel Exhaust Fluid notice will not go away, I added fluid 2 days ago … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
Same issue, as on this screen. 2011 duramax, service exhaust
same issue, as on this screen. 2011 duramax, service exhaust system - see owners manual. Have snap on code reader, no error codes present. 162k miles.… read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
Fuel coming out exhaust. Turned into a gas hog. Chevy half
they changed plugs plug wires injectors and the truck runs rough and mileage is down and holding your hand at the exhaust you can feel droplet of unburent fuel … read more
Expert
Expert
15 satisfied customers
My engine light went on yesterday The code is P0013. Exhaust
My engine light went on yesterday The code is P0013 … read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
35,256 satisfied customers
I just purchased a 2013 Chevy duramax. The exhaust fluid was
I just purchased a 2013 Chevy duramax. The exhaust fluid was at 16 % and at that time the check engine light came on. Could they be related? … read more
Todd M
Todd M
Owner
ASE Certification
1,484 satisfied customers
Clean exhaust filter, see owners manuel. 2500 hd 100,800
I have always had it serviced before warning but can't get it in till Monday, just wondering if I can change it myself … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
Engine light on" clean exhaust filter continue to dric. Ve
engine light on " clean exhaust filter continue to dric … read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,524 satisfied customers
I get a bad odor like rich exhaust from the car. No exhaust
I get a bad odor like rich exhaust from the car. No exhaust leaks, no check engine light all engine data seems normal … read more
rpmdiag
rpmdiag
High school
7,271 satisfied customers
I need to replace exhaust manifolds on a 1970 Chevy 1/2 tin
I need to replace exhaust manifolds on a 1970 Chevy 1/2 tin stock 450 2 barrel Automatic what would be the best manifold for fuel economy… read more
camerontech
camerontech
20 year experience diagnostic technician
class a
559 satisfied customers
Where is the Exhaust Cam Position Actuator Solenoid located
Where is the Exhaust Cam Position Actuator Solenoid located on 93 GMC Serra Trunk ? … read more
George H.
George H.
Technician
Associate Degree
18,733 satisfied customers
We are having smoke out of the exhaust after idialing for
we are having white smoke out of the exhaust after idialing for awhile. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Vocational, Technical or Trade School
47,161 satisfied customers
What's exhaust manifold gasket is better the steel one or an
What's exhaust manifold gasket is better the steel one or an aftermarket one that feels like rubber. I took my catalyic converter off my Chevy Malibu and it has two steel gaskets is that normal? 2005 … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
2,364 satisfied customers
Exhaust smell with a/c on and windows closed. No it has been
we have mechanics at the factory they checked the exhaust mnaifold and a/c intake but could not pinpoint it we can take it to the dealer if needed … read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
There is some exhaust fumes getting in the car, 1988 Chevy
Hi, there is some exhaust fumes getting in the car, 1988 Chevy Coup, need a mechanic to fix it… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,348 satisfied customers
Cleaning exhaust fluid message then goes into engine power
Cleaning exhaust fluid message then goes into engine power reduced. Anything I can do we are in the boonies … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
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.

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.

Show MoreShow Less

Ask Your Question

x