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Related GMC Questions
My Change fuel filter light came on and so I changed fuel
My Change fuel filter light came on and so I changed fuel filter.. after changing fuel filter it says engine is d-rating and would turn off and then just turn over and never fire until I changed fuel … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,070 satisfied customers
I have a 2014 GMC Savana 3500 6.6L Diesel Duramax. I had a
I have a 2014 GMC Savana 3500 6.6L Diesel Duramax. I had a couple of DTC's P0420 and P2463. I removed both cat and DPF filter to get cleaned and they reported DPF had little to no flow. I replaced DPF… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
9,063 satisfied customers
I have a GMC Sierra 2500 HD 37000 miles. I had battery
I have a GMC Sierra 2500 HD 37000 miles. I had battery problems. Started truck with low batteries. Truck DIC indicated a check engine light and DEF service now. DEF was not that low but filled it up a… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,070 satisfied customers
We had a message on the DIC that read def was getting low,
we had a message on the DIC that read def was getting low, we added def to full capacity. Then upon restarting the water in filter light came on and the message then reads to see owners manual for the… read more
Daniel Chaidez
Daniel Chaidez
Technician
Diploma
3,096 satisfied customers
Just changed out the cats on truck, now it runs smooth till
just changed out the cats on truck, now it runs smooth till it warms up then dies out (still has fuel pressure) ran a pressure gauge during warm up and it stays steady at about 60 psi … read more
Keiphun Sowell
Keiphun Sowell
AutoDiesel Technology
1,065 satisfied customers
2013 gmc sierra 6.6 diesel. Truck has condition where dpf
2013 gmc sierra 6.6 diesel. Truck has condition where dpf will start with about 12g soot mass and in about a week will have about 80 g soot mass and engine will derate. A stationary regen seems to cor… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
66,301 satisfied customers
2012 GMC Sierra DIC buttons dont work. 2012 GMC Sierra 2500
Second opinion] 2012 GMC Sierra DIC buttons dont work. … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
66,301 satisfied customers
I have 2008 gmc sierra 2500 hd duramax. have had a couple
i have 2008 gmc sierra 2500 hd duramax. have had a couple engine dodes pop up and trying to figure out what to do … read more
Ethan Lankford
Ethan Lankford
Self Employed
Diploma
287 satisfied customers
2015 duramax that has full Def tank and dash warning wont go
2015 duramax that has full Def tank and dash warning wont go away, any thoughts … read more
Robert Blackwell
Robert Blackwell
Shop Owner
Vocational, Technical or Trade School
159 satisfied customers
On 24 APR I received a response from you rgdg P0420 & P2463
On 24 APR I received a response from you rgdg P0420 & P2463 codes on my 2011 Sierra 3500 6.6 Duramax. I checked for exausted leaks, found None. I check IN & OUT Temps of Catalytic converter, RPM 2200 … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
66,301 satisfied customers
2011 GMC 3500HD 6.6 LML DURAMAX (Stock, no mods). Code P0420
2011 GMC 3500HD 6.6 LML DURAMAX (Stock, no mods).Code P0420 - Catalyst System Efficiency below Threshold Bank 1. Code P2463 - Particulate Filter restriction - soot accumulation. Upon starting DIC Msg … read more
Eric
Eric
Retired
N/A
41,992 satisfied customers
06 GMC Sierra 2500 HD Duramax. Rear ABS coming on just as
06 GMC Sierra 2500 HD Duramax. Rear ABS coming on just as vehicle is rolling to a stop. Harsh 2-1 downshift occurs at same time. No lights on dash. ????… read more
Anthony Uzmack
Anthony Uzmack
ASE Certified Service Technician
Automotive Technology
48 satisfied customers
I have a 2015 GMC Sierra 2500 HD Denali, My truck suffered
Hi Experts , I have a 2015 GMC Sierra 2500 HD Denali , My truck suffered damaged in the engine under covers , I'm not fully aware of wich part to order to make a replacement , also I'm in a country wh… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
66,301 satisfied customers
gmc pickup duramax: I have a 2007 gmc duramax some times it
I have a 2007 gmc duramax some times it wont start just does the light flashing in the dash if u pull the fuse for the pcm and leave the key on for ten minutes thenput the fuse back in it will start t… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
66,301 satisfied customers
GMC 2500 Series: 2008 GMC DURAMAX is displaying to clean exhaust
2008 GMC DURAMAX is displaying to clean exhaust filter ok i got home and notice the exhaust pipe under the truck way too hot is it normal to be this hot to the point where smoke is being produced? the… read more
Mike Kelly
Mike Kelly
Auto Mechanic
Vocational, Technical or Trade Scho
2,509 satisfied customers
GMC 2500 HD Sierra: I need to replace my low beam heasdamp
I need to replace my low beam heasdamp bulb on a 2009 2500 HD Duramax GMC Sierra. The manual doesn't explain the procedure and I was quoted a $200.00 machanic's fee to do it.… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,070 satisfied customers
GMC 2500hd serria: I have a 2500hd duramax and my exhaust filter
I have a 2500hd duramax and my exhaust filter clean and reduced engine power warning light keeps coming on what can i do to fix it… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Sierra 2500 HD Pickup: I have a 2004 GMC Sierra 2500 HD
I have a 2004 GMC Sierra 2500 HD Duramax (210,000 miles) that is starting to experience some electrical issues in the rear of the truck - specifically a left tail light and left license plate light th… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,070 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

2,070 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

66,301 satisfied customers

24 years of experience diagnosing & repairing

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

264 satisfied customers

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

Mike S.

Mike S.

ASE Certified Technician

248 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

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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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