GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
Having trouble with a hydraulic clutch. Put new cylinder on
having trouble with a hydraulic clutch. Put new slave cylinder on and seemed like had problem bleeding it, so we put new master on and still have problems. It wants to grind going in low and reverse b… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,468 satisfied customers
I have a 2001 gmc sierra two weele drive I changed all the
I have a 2001 gmc sierra two weele drive I changed all the brake lines and bled the brakes and I have a soft pedal and it dosent stop very well at all there are no abs lights on I have also used a sca… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 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
33,941 satisfied customers
111mk, GMC: 06 1500 with 5.3L. I replace the brake line from abs to
06 1500 with 5.3L. I replace the brake line from abs to the front passenger wheel.i bled that line until it was all fluid. but the pedal wasn't right. since the master cylinder was almost dry when the… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,596 satisfied customers
GMC 2500 4wd Sierra: I have a /brake problem that I need help
I have a /brake problem that I need help with ASAP. I have rebuilt my brake system and still do not have any brakes. The vehicle is a 1995 GMC 2500 4WD Sierra pickup. At this point I have put news bra… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Suburban K25/K2500 4x4: Hello I have a 1996 GMC suburban
Hello I have a 1996 GMC suburban 2500 4x4 8600 GVWR (vin 3GKGK26J2TG521066 ) I have been chasing a low brake pedal. I have replaced both rear wheel cylinders, drums, shoes, master cylinder. I am conce… read more
ASEMaster35yrs
ASEMaster35yrs
Vocational, Technical or Trade Scho
2,061 satisfied customers
GM Sierra: I have a 2003 GMC Sierra Xcab shortbed 4x4 Z71 with
I have a 2003 GMC Sierra Xcab shortbed 4x4 Z71 with a brake problem. AFter replacing the original master cylinder, both front calipers still have some brake pressure applied after I let up on the brak… 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
1,103 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.
Vocational, Technical or Trade Scho
8,117 satisfied customers
GMC C3500 HD: My 2006 GMC 3500 will lightly apply the brakes
My 2006 GMC 3500 will lightly apply the brakes while driving w/o touching the pedal. If I drive far enough the rotors heat up and the truck will get harder to keep speed. The first time that it did th… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500: 1999 GMC/SIERRA K1500/5.3L V8 MPI OHV I just
1999 GMC/SIERRA K1500/5.3L V8 MPI OHV I just replaced all the brake lines going from ABS block to front.My problem is I bled whole system but no pedal.How can I get pedal again?… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 1999 GMC K1500 Suburban. I have replaced all brake
I have a 1999 GMC K1500 Suburban. I have replaced all brake pads, rtors, shoes and drums and bled the fluid system twice. The parking brake/warning light stays on and won't go off. During normal braki… read more
ASEMaster35yrs
ASEMaster35yrs
Vocational, Technical or Trade Scho
2,061 satisfied customers
GMC Yukon: very soft brake paddle sometimes i have to pump
very soft brake paddle sometimes i have to pump the brakes to get full peddle I see no leaks at all… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC C1500 PU 5.0l: I replaced the master cylinder in my 1998
I replaced the master cylinder in my 1998 GMC C1500 5.0l. I "bench bled" the m/c while mounted on the vehicle. I bled the brakes with engine off, and got good pedal. when I started engine, with vac bo… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,837 satisfied customers
GMC/Chevy Silverado: 02 Silverado, xtracab, 5.3 gas, 235k.
02 Silverado, xtracab, 5.3 gas, 235k. Brake Problem: New pads, rotors & calipers w/ bleed- Truck will stop, but not quickly. Pumping the brakes has no effect. I can push pedal to floor without too muc… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,691 satisfied customers
GMC 1500 Series: This is on a 1996 GMC Sierra 1500 two wheel
This is on a 1996 GMC Sierra 1500 two wheel drive 5.7L. What would cause brake fluid to shoot into the front brake side of the master cylinder when applying the brakes? The brake pedel goes half way d… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,837 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 P-30 with diesel: Have GMC 1999 p30 stepvan. code computer
Have GMC 1999 p30 stepvan. code computer cannot connect, looking for fuse or wiring problem at this time, the breaks are soft and will allow brake pedal to travel to floor. Looks like someone replaced… read more
jonb9173
jonb9173
Diagnostic Technician
57 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