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2014 gmc 2500hd engine light on and poor def quality on
2014 gmc 2500hd engine light on and poor def quality on display … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
19,925 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
3,013 satisfied customers
I have a message on my display that the def is poor quality
I have a message on my display that the def is poor quality and I use the same stuff every time … read more
timdieseltech
timdieseltech
diesel tech
Vocational, Technical or Trade School
98 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
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2012 Chevy Silverado Duramax vin 8. Poor exhaust fuel
2012 Chevy Silverado Duramax vin 8. Poor exhaust fuel quality poor showing on dash. Replaced DEF tank module and pump. Regen several times and performed fuel quality test several times. No codes. Down… read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
463 satisfied customers
Reading up on why my DIC on my 2014 Cruze Deisel ‘exhaust
Hi, reading up on why my DIC on my 2014 Cruze Deisel ‘exhaust fluid quality poor' light is on. Had the car in for recalled Nox Sensor to be changed, called me back said GM said wrong part, so they had… read more
BOBBYSS
BOBBYSS
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Associate Degree
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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
37,709 satisfied customers
I have a 2014 Duramax LML in my 3500 dually. The Diesel
I have a 2014 Duramax LML in my 3500 dually. The Diesel Exhaust Fluid bad light came on and the Engine Light. I am reading code P202 on the hand held code reader I have. I have previously had the DPF … read more
Chris (aka- Moose)
Chris (aka- Moose)
Vocational, Technical or Trade School
57,467 satisfied customers
I have a "DEF poor quality" message. I can top off the tank
I have a "DEF poor quality" message. I can top off the tank which will only take about two quarts, and the light will go out with about 40 miles of freeway speed. When I use the two quarts of DEF the … read more
Eric
Eric
Retired
N/A
37,709 satisfied customers
Silverado "reduced engine speed" ack! 70k mi. Automatic.
Anything else you want the mechanic to know before I connect you?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Vocational, Technical or Trade School
57,467 satisfied customers
DEF fluid quality poor and slowed me down to 55mph max and i
DEF fluid quality poor and slowed me down to 55mph max and i need to get to work can i disconnect this POS since my warranty is over> QUALITY … read more
Jason Hablutzel
Jason Hablutzel
ASE Master Tech
57 satisfied customers
I have a 2011 3500 HD Dually 6.6 Duramax diesel. The water
I have a 2011 3500 HD Dually 6.6 Duramax diesel. The water in fuel came on a day or so after putting in some power service fuel conditioner. This has also happened before when I had the truck in for a… read more
Pete
Pete
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General auto certifications
33,440 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
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Bachelor's
2,496 satisfied customers
Have a def light on the dash and no engine code message say
have a def light on the dash and no engine code message say 70 miles to 65 miles reduced some like that … read more
Master Auto Tech.
Master Auto Tech.
High School or GED
546 satisfied customers
Have 2015 Chevy truck 35004x4.speed lock down 4miles per
Have 2015 Chevy truck 35004x4.speed lock down 4miles per .computer. Says exhaust fluid quality. Poor. But change old def out when with new def.… read more
Pete
Pete
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General auto certifications
33,440 satisfied customers
I took my 2012 Chev. w/duramax engine to dealer who does all
I took my 2012 Chev. w/duramax engine to dealer who does all service work when the DEF tank came on. The light stated the DEF tank needed fluid. After waiting for approx. 1 hr. rthe serv. rep came out… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
16,004 satisfied customers
Duramax..next trip we drove 20 miles and the exhaust poor quality went
Just bought a 2011 [email protected] 250 miles a code came on, exhaust fluid poor quality see owners manual along with the check Eng light... next trip we drove 20 miles and the exhaust poor quality went off b… read more
David H
David H
Vocational, Technical or Trade Scho
2,678 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
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

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Don - Mo Lurch

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Jerry Newton

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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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