GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
I should preface my question with the fact that I know very
Hello. I should preface my question with the fact that I know very little about vehicles, so please forgive me in advance for my lack of knowledge or understanding. When I get into my 2003 GMC Envoy (… read more
MastertechRob
MastertechRob
Master level lead technician
230 satisfied customers
No oil pressure ,replzced sending unitthen read 80psi
No oil pressure ,replzced sending unitthen read 80psi unplugged then 0 again … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
685 satisfied customers
I have installed a 4.2 Envoy inline six in my '58 GMC
I have installed a 4.2 Envoy inline six in my '58 GMC stepside, and am ready to prime it, since it has set for several years. It was a low mileage used engine. My question is: in an earlier post you m… read more
Kurt Mulling
Kurt Mulling
Lead Technician
High School or GED
310 satisfied customers
I can stop at a stop light and my reduced engine power light
I can stop at a stop light and my reduced engine power light will come on and I can't go over 10MPH … read more
Ethan Lankford
Ethan Lankford
Self Employed
Diploma
287 satisfied customers
I have a 2005 envoy the thing is. Concerning me on this car
Hello my name is***** i have a 2005 envoy the thing is. Concerning me on this car is my all day is going down to zero and it's saying stop engine and it's saying low pressure and my car is running fin… read more
Joe Prestia
Joe Prestia
Automotive Repair Specialist
1,079 satisfied customers
Need to increase idle speed to offset low oil pressure
Need to increase idle speed to offset low oil pressure alarm. is it possible to change computer ?? thanks … read more
Eric
Eric
Retired
N/A
37,686 satisfied customers
Code P0521.. my oil guage stayed at zero. Changed the oil
Code P0521.. my oil guage stayed at zero. Changed the oil sending sensor and it work for a half day then it went back down to zero, my reduce power to engine light is on. Could it be the oil pump. I h… read more
Julio Quispe
Julio Quispe
175 satisfied customers
Lost all oil pressure while driving and heard a knocking
lost all oil pressure while driving and heard a knocking noise have already changed the oil pressure sensor and oil pump … read more
Tyler Henry
Tyler Henry
Technician
Automotive service technology
3,009 satisfied customers
I have a 2004 GMC Sierra 1500 5.3. Low oil pressure, I have
I have a 2004 GMC Sierra 1500 5.3. Low oil pressure, I have replaced pressure sensor and changed oil and filt. … read more
Tyler Henry
Tyler Henry
Technician
Automotive service technology
3,009 satisfied customers
I have a 1995 gmc 5.7 TBI. erratic idol and i lose power
i have a 1995 gmc 5.7 TBI. erratic idol and i lose power when accelerating. … read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
I have a 2007 gmc sierra, 6.6 duramax LBZ, one day got low
I have a 2007 gmc sierra, 6.6 duramax LBZ, one day got low oil pressure warning light and the chimes while slowing down for red light. No noise, engine sounded fine. Checked the oil, it was ok. I chan… read more
sprinkles08
sprinkles08
Technician
High School or GED
18,986 satisfied customers
I have a 2004 gmc envoy xl with a 4.2 6 cylinder motor that
I have a 2004 gmc envoy xl with a 4.2 6 cylinder motor that has 185,000 mile on it. i have a noise wich i thought sounded like the timing chain was loose or slapping against the oil fill cover on top … read more
david craig
david craig
Owner/[email protected] 3D Atuomotive
Associates
9,656 satisfied customers
2003 GMC Envoy XL SLE Check engine light is on. I did a
2003 GMC Envoy XL SLE Check engine light is on. I did a diagnostic test. Codes P0013 and P1345 appeared. Changed VVT, camshaft sensor, crankshaft sensor, changed oil, oil filter, cleaned throttle body… read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
The check gauges warning light came on the instrument panel
The check gauges warning light came on the instrument panel cluster, the air conditioner stopped cooling but fan worked. The coolant temperature gauge stayed at 100. Oil pressure stayed at 40 in the m… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,474 satisfied customers
GMC Envoy XL: Can you help? I have a 2005 Envoy XL 8 cylinder
Can you help? I have a 2005 Envoy XL 8 cylinder with about 130000 miles that has been well serviced on a regular basis. Last July 2014, my Chevrolet/GMC dealership installed a new starter switch becau… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500 Classic SLE: I have 1994 GMC 4WD sierra SLE.
I have 1994 GMC 4WD sierra SLE. 5.7 V8 K1500. The motor is sluggish to turn over, and number four spark plug is arcing at the block right next to the heat shield when it tries to start. Plugs and wire… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Chevy Silverado SLT: I have a 2005 Silverado 5.3 SLT that
I have a 2005 Silverado 5.3 SLT that the oil pressure gauge pegs at 80...but will drop to zero during driving...and then back to 80. Is the engine actually dropping oil pressure or is it a faulty sens… read more
Mike S.
Mike S.
ASE Certified Technician
Vocational, Technical or Trade Scho
241 satisfied customers
GMC: I have a 2002 GMC Envoy. When I stop at a light, the
I have a 2002 GMC Envoy. When I stop at a light, the oil pressure light comes (low oil pressure). The gauge drop to zero then back to middle when I move the vehicle. The oil level is normal (full)… read more
BigBob
BigBob
Service Manager
High School or GED
4,792 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