GMC

GMC troubleshooting questions? Ask a mechanic for answers

Connect one-on-one with {0} who will answer your question

Related GMC Questions
GMC Acadia 2010 having 20 negative fuel trim. Increase fuel
Had cel with code p029D but issues resolved with changing fuel injectors and suspecting some electric shorts in car… read more
Roy
Roy
shop foreman
Associate Degree
5,246 satisfied customers
Was getting intermittent engine cylinder 4 misfire codes for
Was getting intermittent engine cylinder 4 misfire codes for a couple months finally truck started running terrible and it said mass air flow sensor replaced that still round terrible replaced ended u… read more
richard cole
richard cole
OWNER/OPERATOR
Associates (2 YRs)
208 satisfied customers
Misfire 2012 Acadia Denali 101k. Misfire when not on full
Misfire when not on full load of acceleration Not at idle … read more
Tyler Henry
Tyler Henry
Technician
Automotive service technology
3,009 satisfied customers
2008 GMC Acadia engine shakes and I have these codes p000D
2008 GMC Acadia engine shakes and I have these codes p000D exhaust (b) camshaft position slow response bank 2 p0300 p0302 p0304 p0306 I bought a new sensor and put it in before this the one right abov… read more
Daniel Chaidez
Daniel Chaidez
Technician
Diploma
1,986 satisfied customers
Hesitation, lost in fuel economy, vibrating. Big amount in
Yes Big amount in fuel consumption Changed spark plugs,ignition coils After changing this I got a code for random misfire and cylinder 1 misfire … read more
Tyler Henry
Tyler Henry
Technician
Automotive service technology
3,009 satisfied customers
I have a 2004 GMC Sierra half ton with the 4.8l I just
Hi! I have a 2004 GMC Sierra half ton with the 4.8l I just discovered while changing all spark plugs that I had oil on every plug. It was fresh oil and the truck had been smoking for quite a while but… read more
AutoDoc1
AutoDoc1
ASE Master Certified Technician
High School Diploma
2,887 satisfied customers
It has cel code p0019 and just had check stabilitrack,
It has cel code p0019 and just had check stabilitrack, traction off, engine power reduced on 2012 gmc acadia...this is after an engine change … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
19,904 satisfied customers
I have a 2009 Acadia fwd. I had an issue with a plugged cat
I have a 2009 Acadia fwd. I had an issue with a plugged cat and melted one of the coil plug-ins. Now I replaced the plug-in, cats are gone, replaced O2 sensors, new spark plugs, and new coils. Now I k… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
Number 3 misfire. 329000 steady at low idle goes away at
all cylinders check about 130 compresson valve springs all look good problem started with number2 misfire after changing parts went to number 3 misfire… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
24,545 satisfied customers
2011 Acadia with 65,000 miles giving codes P0300, P0303,
2011 Acadia with 65,000 miles giving codes P0300, P0303, P0306 which is cylinder misfires on different sides of engine. Check engine light just came on and no obvious issues like gas cap or fluid topp… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Had misfire code on cylinder 5, changed coil now it starts
Had misfire code on cylinder 5, changed coil now it starts fine for 30 seconds and then rpms drop almost dies. … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
Check engine light is flashing on my 2004 gmc sorry 2500 hd
Check engine light is flashing on my 2004 gmc sorry 2500 hd with the 6.0 litre. Changed the coil packs as my mechanic friend told me. No change. Light still flashing and idling rough. Any ideas? … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 3.6 liter engine 2011 GMC Acadia. The engine
I have a 3.6 liter engine for my 2011 GMC Acadia. The engine flutters at 40 to 50 mph depending on the rpm. It also wil occasionally surge 50 rpm for several repetitions. I have changed the spark plug… read more
Ryan Schott
Ryan Schott
76 satisfied customers
2008 GMC Acadia. the service stabilitrak and traction
2008 GMC Acadia. the service stabilitrak and traction control turned off light appears. Have a misfire on cyl 1. also have a code p0300. I changed the coil and the mis fire is stil there.… read more
mike switzer
mike switzer
737 satisfied customers
My 2009 gmc acadia hesitates on lls and certain rpm--#4 is
My 2009 gmc acadia hesitates on hills and certain rpm--#4 is missing--new plug and coil and still doing the same thing. 51000 miles on it. Could coil wires need replaced ? It happens at faster speeds-… read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
08 Acadia. Runs fine until you stop at stoplight. When
08 Acadia. Runs fine until you stop at stoplight. When stopped at light, the engine runs roughly, and it says stabilitrak is off.… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,117 satisfied customers
2005 GMC ENVOY 5.3. ENGINE CODE P0300... CYLINDER NUMBER 5
2005 GMC ENVOY 5.3. ENGINE CODE P0300... CYLINDER NUMBER 5 IS MISFIRING. SWAPPED COILS, INJECTORS, SPARK PLUGS,WIRES, SMOKED TESTED FOUND NO LEAKS, REPLACED INTAKE MANIFOLD GASKET. CHECKED INJECTOR PU… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
GMC ENVOY: Hello Peterpete, Regarding the 2002 GMC ENVOY SLT
Hello Peterpete, Regarding the 2002 GMC ENVOY SLT 4.6cyl SUV, there is still a problem with Check Engine Light. OBD-II Error code P0303, Cylinder-3 misfire detected. Just cleaned Fuel Tank, installed … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
33,397 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.

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:

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

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,912 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

766 satisfied customers

16 years of experience

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

248 satisfied customers

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

Mike S.

Mike S.

ASE Certified Technician

241 satisfied customers

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

< Previous | Next >

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