GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
While driving straight, level on a dry day, my Canyon seems
While driving straight, level on a dry day, my Canyon seems to want to go in to 4Wheel Drive. It makes a Clicking noise like a rock in the tire. To eliviate this, I stop, put in neutral, push the 4 LO… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,102 satisfied customers
I have a 2007 gmc sierra denali..it came with awd. when i
i have a 2007 gmc sierra denali..it came with awd. when i rebuilt the transmission i removed the transfer case and cone at end of transmission and did a 2wd. however, i left the front end alone, did n… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
5,511 satisfied customers
I have a GMC Yukon Denali 2015. My truck was running great
I have a GMC Yukon Denali 2015. My truck was running great until i got stuck in snow and was trying to get out i ended up getting out the snow, but i notice how when i change the gear to 4WD low and p… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,837 satisfied customers
I have a 2005 gmc envoy xl. There is a noise that occurs in
I have a 2005 gmc envoy xl. There is a noise that occurs in the front left side when I accelerate in***** It sounds like it sounds like two two things rubbing against each other. the sounds especially… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 2000 GMC sierra. The front actuator engages the
I have a 2000 GMC sierra. The front actuator engages the diff whenever the vehicle is running. If I just turn it to 'on' and shift the 4wd lever, the actuator moves in and out as it should but as soon… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
My transfer case won't fully disengage from 4wd on my 02 GMC
My transfer case won't fully disengage from 4wd on my 02 GMC duramax. What would cause this?… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 2002 GMC Sierra 1500. The 4wd randomly quit
Hello. I have a 2002 GMC Sierra 1500. The 4wd randomly quit working. I have no service messages, the selector switches continue to work normally. I can hear and feel the truck switch from 2-4Hi and 4H… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra slt 4wd: Hi Cam. My truck is a 2004 GMC extended
Hi Cam. My truck is a 2004 GMC extended cab slt 4WD. I keep it well maintained and the 4WD worked perfect only until a couple of days ago. It just disengaged on its own. There are no warnings lighting… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,649 satisfied customers
gmc envoy: 99 envoy, I have Awd and 4wd. but no 2wd,button
99 envoy, I have Awd and 4wd. but no 2wd,button lights up but not engaging, changed transfer case, transfer case motor, transfer case module?… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Gmc Sonoma 4x4: I have a 96 gmc sonoma. It has a constant tapping
I have a 96 gmc sonoma. It has a constant tapping noise when I'm driving around in 2wd. It use to come once in a while and it would stop when I came to a complete stop but it would clunk. I can feel a… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sonoma 4x4: I have a 2002 GMC Sonoma, 4.3 4x4. When i
I have a 2002 GMC Sonoma, 4.3 4x4. When i shift into 4wd i get a whining noise in the right front. If i shift back to 2wd in takes about a half mile to come out and it does with a load bang. If i stop… read more
sprinkles08
sprinkles08
Technician
High School or GED
18,146 satisfied customers
GMC: I own a 2009 GMC Canyon with 2/4WD. Mileage is at about
I own a 2009 GMC Canyon with 2/4WD. Mileage is at about 65,000. Recently the Transfer Case Position Sensor Selector Switch started blinking continuously.Sometimes the blinking is at 4WD and other time… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,791 satisfied customers
GMC K1500 Sierra 4x4: I have a 1996 gmc 1/2 ton 4x4. Four wheel
I have a 1996 gmc 1/2 ton 4x4. Four wheel drive wont engage. Push buttons on dash flash when trying to lock in. I can hear motor working on transfer case when trying to lock in. Have replaced actuator… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
gmc jimmy: 97 gmc jimmy: 4wd will not engauge. ichanged the
97 gmc jimmy: 4wd will not engauge. ichanged the vacume actuatior 2 weeks ago worked fine. now it dosent transcase still engauging front drive line, any way to tighten cable goin to front diff, or did… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GM Suburban: My 2002 Suburban is not locking the front axle.
My 2002 Suburban is not locking the front axle. The push button selector on the dash has no lights flashing and I did get under the truck and have the wife go from 2wd to 4wd high with my hand on the … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,649 satisfied customers
GMC Sierra 2500 HD SLT: I just bought a 2001 GMC Sierra 2500HD
I just bought a 2001 GMC Sierra 2500HD Ext Cab. It has the electronic mode and range selection for the transfer case (RPO NP1). My understanding is its a part time system and shift on the fly from 2HI… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC: We have a 99 gmc suburban k1500. The other night my son
We have a 99 gmc suburban k1500. The other night my son was driving it and he was turning around in the neighbors driveway....when he backed up and then proceeded to go forward, as soon as he placed i… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,791 satisfied customers
GMC Yukon 4wd: We have a 2002 GMC Yukon 4wd. On our last trip
We have a 2002 GMC Yukon 4wd. On our last trip home we ride up pretty steep inclines. The truck started making grinding noises while driving up inclines. Dont hear any thing going down. It's a pretty … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
5,511 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

1,837 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

705 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

291 satisfied customers

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

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

234 satisfied customers

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

< 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