GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Related GMC Questions
Car turns on and runs fine. Touch screen does not power on,
Car turns on and runs fine. Touch screen does not power on, no radio power, no AC and it show an error w the parking sensor … read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,083 satisfied customers
2003 gmc sierra 5.3 wont start no fire at plugs. This truck
replaced cam and crank sensor cleared alarm system replaced oil pressure switch and checked oil level sender … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,512 satisfied customers
GMC 2014 Sierra I have code po171 and 174 fuel trims lean
GMC 2014 Sierra I have code po171 and 174 fuel trims lean bank 1 and 2 and when u stopped after my test drive po324 occurred knock sensor module performance. Any info would be helpful ...it's a 5.3 4x… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
37,471 satisfied customers
2014 GMC 1500 Sierra 5.3 2wd. I was driving heard a loud
2014 GMC 1500 Sierra 5.3 2wd. I was driving heard a loud squeal. Pulled over and my ac belt was broken. The compressor spins fine but the center part of the compressor only turns one rotation each way… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have. I have a 2014 GMC Sierra with a mysterious radiator
I have a 2014 GMC Sierra with a mysterious radiator leak. I have a 5.3 engine with 6 speed automatic transmission, 4 x 2. What does an LD classification mean and how do I know if I have that or not? … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,847 satisfied customers
K i have a 95 gmc sierra 4x4 i put a new nurtal safty switch
k i have a 95 gmc sierra 4x4 i put a new nurtal safty switch in it and changed my spark plugs to get rid of the missing but the truck was only idle at 500 rpms when i took it for a test drive i parked… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
29,925 satisfied customers
Its actually a gmc sierra 1500 extended cab 4x4mes 2005 it
Its actually a gmc sierra 1500 extended cab 4x4mes 2005 it dies sometimes while driving with no warning … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
1,390 satisfied customers
I have a 2009 gmc Sierra 1500 with the 5.3 with afm. Now I
I have a 2009 gmc Sierra 1500 with the 5.3 with afm. Now I bought it used with 231000 kms. When I got it last February the oil pressure sensor decided to go on me. Now I have had it replaced twice now… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
My 2009 gmc acadia, Will crank but won't start. I have
Will crank but won't start. I have replace the crank position sensor and all 6 spark plugs and a new battery. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,876 satisfied customers
I have a 1997 GMC Savana. It has 132000 kms on it .It has a
Hi, I have a 1997 GMC Savana. It has 132000 kms on it .It has a new crate engine (10k on it now) new plugs wires cap rotor. has new crank position sensor etc all the stuff was replaced when new engine… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,036 satisfied customers
2004 GMC Sierra 1500 SLE with 5.3 liter (non-flex) has been
2004 GMC Sierra 1500 SLE with 5.3 liter (non-flex) has been giving a P0175 (rich bank 2) code. Previously had code for knock sensor as well and replaced them and harness, however still have bank 2 cod… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
54,732 satisfied customers
2012 GMC Sierra makes creeking sound when accelerating from
2012 GMC Sierra makes creeking sound when accelerating from a stop. Vibrates some times when at idle in drive only. Gas pedal also makes hissing sound when excelerating, not sure if this is normal.… read more
Matt
Matt
Engineer
Bachelor's Degree
16,053 satisfied customers
I got a problem with my bank 2 sensor 2, i just replaced the
Hello there. I got a problem with my bank 2 sensor 2, i just replaced the sensor and the p0060 code is still coming on.… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500 Classic SLT: I have a 2001 gmc sierra 1500
I have a 2001 gmc sierra 1500 with a 5.3 2wd. Code po420 came on today. Bank 1. I have 338k on the truck. A live scan showed readings are close on the o2 sensors before and after bank 1 cat.Truck runs… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
2015 GMC Sierra 6.0L- which are the IAT sensor wires? Is it
2015 GMC Sierra 6.0L- which are the IAT sensor wires? Is it a 5 or 8 wire MAF? Do you have a location diagram for the MAF and for the connection? Thanks.… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,672 satisfied customers
hello, i have a 2008 gmc sierra 1500 5.3 Yesterday while
hello, i have a 2008 gmc sierra 1500 5.3 Yesterday while changing driver side headlight i saw that the forward ground wire on the chassis behind the bumper (driver side) is cut off. blunt cut like whe… read more
Luke
Luke
11 satisfied customers
GMC Sierra 3500 Classic SLE: I have a 1997 GMC sierra 3500
I have a 1997 GMC sierra 3500 with a 454 7.4 LTR engine I have replaced o2 sensors, fuel injectors, fuel pressure regulator, complete distributor, spark plugs and it is still running real rich? bank 2… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
GMC Sierra 1500: how to Replace Oxygen Sensor(s)(O2S) on 2006
how to Replace Oxygen Sensor(s)(O2S) on 2006 GMC automatic Engine v8,5.3L Mileage70634 model Sierra… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,672 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

1,823 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

54,732 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

285 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

230 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

< 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