GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
Just did a caliper replacement and did a traditional bleed
Just did a caliper replacement and did a traditional bleed and had no pedal. I did an abs bleed and they are spongy pedal. First application of the brakes and they will almost go to the floor. Pump it… read more
Eric
Eric
Retired
N/A
46,036 satisfied customers
I just did the front brakes on my 2000 GMC Sierra truck
I just did the front brakes on my 2000 GMC Sierra truck brake pads all the way around for him back but now it seems like my front brakes are not fully releasing the pressure because it seems like they… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
23,224 satisfied customers
2002 gmc sierra 4.8 4wd, does that count? blew 2 brake lines
blew 2 brake lines prior to the electronic hydraulic control unit, repaired those with new line and compression fittings … read more
Mechanic01
Mechanic01
13,307 satisfied customers
My 2004 GMC Sierra 2500hd rear brake caliper keeps braking
My 2004 GMC Sierra 2500hd rear brake caliper keeps braking and leaking brake fluid … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
2008 GMC Van 1500 4x4. Owned since new. I replaced rear
2008 GMC Van 1500 4x4. Owned since new. I replaced rear brake pads last year at 60K miles, went to the front, and found the front pads are still full thickness, never worked from the factory. Some rub… read more
Mike S.
Mike S.
ASE Certified Technician
Vocational, Technical or Trade Scho
256 satisfied customers
GMC Sierra 2500 HD Classic SLT: I have a 2003 GMC sierra 2500
I have a 2003 GMC sierra 2500 hd diesel truck with 170K, one day on the way to work the rear brakes had locked up and started smoking, so I changed the brake pads, calipers, master cylinder, replaced … read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
2000 c3500 disc front drum rear. Had weak brake pedal. Replaced
2000 c3500 disc front drum rear. Had weak brake pedal. Replaced both front calipers and pads. Rear brakes are good and adjusted. New master cylinder. System is properly bled. Have decent brakes with e… read more
Eric
Eric
Retired
N/A
46,036 satisfied customers
GMC K1500 Sierra 4x4: I am having trouble getting brake fluid
I am having trouble getting brake fluid to the left front caliper on a 1997 GMC Sierra. Am getting fluid to the abs hydraulic unit but nothing out of the unit to the left front. Had both calipers off … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Suburban K15/K1500 4x4: spongy brakes, k1500, suburban,
spongy brakes, k1500, suburban, 5.7L, reman MC, new calipers, new brake cylinders, used ABS Modulator valve, three new brake lines to ABS proportioning valve, bled brakes with liters through each whee… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,179 satisfied customers
GM Sierra: I have a 1997 GMC Sierra K1500 4WD. I have a problem
I have a 1997 GMC Sierra K1500 4WD. I have a problem with the brakes. If I lightly pump the brake pedal, the truck comes to a stop, however if I firmly press the pedal to stop abruptly the brake pedal… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,559 satisfied customers
GMC Sierra 1500: we have a 99 gmc truck 1500 series,brakes
we have a 99 gmc truck 1500 series,brakes are sponggie still after replacing brake booster,no leaks,fluid full,bleed abs,whats wrong… read more
Mike S.
Mike S.
ASE Certified Technician
Vocational, Technical or Trade Scho
256 satisfied customers
GMC K3500 4x4: I have a 1998 GMC k3500 with a 7.4 litre. The
I have a 1998 GMC k3500 with a 7.4 litre. The problem is locked up brakes on the front. I have put both brake line hoses on the front and the right front caliper. I have bleed the system and once you … read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC 3500 4x4 cab and chassis: I just installed new rear calipers
I just installed new rear calipers and all new brake lines on my 2004 gmc sierra 3500 cab and chassis. The rear calipers wont bleed or work but the front brakes will. There is a weak pedal now. Is the… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
GMC Acadia: I just changed the brake pads on wifes 07 Acadia,
I just changed the brake pads on wife's '07 Acadia, all four wheels done. Applying braking pressure does nothing unless I pump the brake pedal...what did I do wrong?… read more
Eric
Eric
Retired
N/A
46,036 satisfied customers
GMC Sonoma Pickup 4x4: I have a 98 sonoma and just changed
I have a '98 sonoma and just changed all the rotors and the brake pads. I thought i bled the lines properly but maybe not. The pedal was squishy when i took it for a test drive. The brakes stopped the… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500: 2001 GMC Sierra 1/2 ton pick-up:left side
2001 GMC Sierra 1/2 ton pick-up:left side Front brakes do not release. No recent brake work, pads are good, caliper pistons are free and slides are lubed and free. Open bleeder valve and the pressure … read more
Eric
Eric
Retired
N/A
46,036 satisfied customers
GM Gmc sierra1500: I have a 1995 gmc sierra 1500XXXXX
I have a 1995 gmc sierra 1500XXXXXwith abs. I have changed front pads right caliper a master cylinder and right brake line. I have good pressure when the truck is off without the power assist and ther… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500 HD Pickup: Brake pedal still very spongy after
Brake pedal still very spongy after bleeding 20+ times. I recently purchased a 1998 GMC Sierra 1500 extended cab pickup. I had to replace the entire brake system; front calipers and rear slave cylinde… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,126 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

2,126 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

904 satisfied customers

24 years of experience diagnosing & repairing

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Mike S.

Mike S.

ASE Certified Technician

256 satisfied customers

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

George H.

George H.

ASE MasterTechnician

233 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