GM

GM repair problems? Ask a GM repair expert now.

Ask an Expert,
Get an Answer ASAP!

Related GM Questions
I have a 2001 Chevrolet trail Blazer 4.2L rear wheel drive
I have a 2001 Chevrolet trail Blazer 4.2L rear wheel drive .It has stalled but runs fine now but it does have trouble codes p2135 p2138 ang p0651 any ideas on how to repair this??????… read more
ZZDaryl
ZZDaryl
Lead Auto Tech
Some college and advanced training
11,465 satisfied customers
my truck shows codes 22 and 34 and will not start can these
my truck shows codes 22 and 34 and will not start can these sensors cause this or is this a ecm problem… read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
2,323 satisfied customers
GM saturn aura: i have a 2008 Saturn aura with 2.4 ecotech
i have a 2008 Saturn aura with 2.4 ecotech i have a p0641 but when this code pops up instrument panel say engine is derated and traction is disabled… read more
K. Wiggins
K. Wiggins
ASE Certified Technician
Associate Degree
3,571 satisfied customers
GM Buick: 2000 buick lesabre 3.8, 138K miles. oil pressure
2000 buick lesabre 3.8, 138K miles. oil pressure goes up to over 100 and down to zero and the light comes on the climbsback up and light goes off. The gas gauge goes to empty then to full and in betwe… read more
K. Wiggins
K. Wiggins
ASE Certified Technician
Associate Degree
3,571 satisfied customers
1994 gmc: liter..80 psi fuel pressure to the throttle body
I have a 1994 GMC Topkick, with 7.0 liter and throttle bodt Injection. THe fuel pump is funtional, have 80 psi fuel pressure to the throttle body. the fuel injectors and the throttle posistion sensor … read more
Wayne Crawford
Wayne Crawford
3,928 satisfied customers
GM 2500 HD: We have a 2008 Chevy 2500 HD. Every 400 miles or
We have a 2008 Chevy 2500 HD. Every 400 miles or so we experience reduced engine power. We have replaced the GM throttle motor. Appears to have new APPS. It has a new pig tail to the throttle motor. T… read more
Hal
Hal
owner/service tech
Vocational, Technical or Trade Scho
925 satisfied customers
2001 GMC Yukon Denali: PCM..module..6.0L, 4WD) but BAD NEWS..pedal
Hello, I just received the PCM back and also the TAC module; installed into vehicle and after it idled a bit then ran for close to 5-10 minutes I put the SnapOn Modis onto the vehicle (again, a 2001 G… read more
GM Tech (Cam)
GM Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
5,844 satisfied customers
2004 sierra: reduced engine power..app, tb, harness..replaced battery
I have a 2004 sierra 2500Hd. I have been getting the reduced engine power with code p1125 intermitenly for about a year now. I have replaced app, tb, harness, checked grounds, replaced battery, and ch… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
17,291 satisfied customers
2004 GMC Yukon: engine light came..the oxygen sensor,plenum gasket
we have a 2004 GMC Yukon and the reduced engine light came on again. The first time this happened we took it to the dealer ( 5-9-2011 ) and they replaced the oxygen sensor, plenum gasket and performed… read more
Ken
Ken
GM Auto Tech.
Vocational, Technical or Trade Scho
754 satisfied customers
92 olds silhouette: cranks..New fuel pump and rebuilt tbi.
92 olds silhouette 3.1 that cranks for a long time then starts. New fuel pump and rebuilt tbi. Shows code 54. fuel pump relay.Thoughts. Engine cranks for about 3-4 seconds until the tbi starts shootin… read more
Dale Stockstill
Dale Stockstill
Retired
Vocational, Technical or Trade Scho
1,034 satisfied customers
2004 envoy: gmc..reduced power..check engine light..i need an ecm
i have a p2138 code on gmc 2004 envoy i tried erasing the code but the code cannot be erased and i have a reduced power light in connection with that check engine light, do i need an ecm? how to erase… read more
John
John
GMC Technician
2 YEARS COLLEGE
9,176 satisfied customers
GMC: DIESEL ENGINE..WIRING DIAGRAM FOR ENGINE AND ECM CONNECTORS
I HAVE GMC C 6500 YEAR 2003 DURAMAX DIESEL ENGINE I NEED WIRING DIAGRAM FOR ENGINE AND ECM CONNECTORS… read more
GM Tech (Cam)
GM Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
5,844 satisfied customers
I HAVE A 2001 GMC C3 WITH A 6.0 GAS CODE P1125 SHOWS IT REDUCES
I HAVE A 2001 GMC C3 WITH A 6.0 GAS CODE P1125 SHOWS IT REDUCES ENGINE POWER AND WILL NOT CLEAR UNTILL I CLEAR THE CODE IF I USE THE CRUISE CONTROL AND NOT TOUCH THE THROTTLE IT WONT CODE UP. I REPLAC… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
17,291 satisfied customers
93 GM: injectors, distributor-cap-rotor-wires-plugs-timing..leaks..EGR
93 GM K1500, 5.7l stumbles, won't accelerate when warm. Have replaced and/or tested: fuel pump-lines-filter, injectors, distributor-cap-rotor-wires-plugs-timing, coolant temp sensor, computer, exhaust… read more
Jim
Jim
Vocational, Technical or Trade Scho
1,491 satisfied customers
89 chevy p30: step van engine starts..stall..engine light comes
89 chey p30 step van engine starts and stall most of the time. engine light comes on sometimes at lower speeds and goes off at higher speeds.… read more
Ivan
Ivan
Automotive Instructor
Bachelor's Degree
4,857 satisfied customers
2003 GMC: engine power..crank..It will not accelerate at all
My 2003 GMC Sierra engine light is on and the message is low engine power. I can crank it, but I have no accelerator. It will not accelerate at all.… read more
GMKindl
GMKindl
Associate Degree
388 satisfied customers
1990 olds cutlass ciera: 3.3 L Vin N - Can not get..ECM..TPS
1990 olds cutlas ciera 3.3 L Vin N - Can not get rid of code 22 Changed ECM , TPS , ran 3 new wires ,gray,blue,& black from TPS to ECM… read more
Ivan
Ivan
Automotive Instructor
Bachelor's Degree
4,857 satisfied customers
97 gmc savana 3500 6.5 turbo diesel, service throttle soon
97 gmc savana 3500 6.5 turbo diesel,"service throttle soon" light came on,later that day truck shuts off while driving,wait a few and it starts back up,but now hesitates and also will idle as if starv… read more
John
John
GMC Technician
2 YEARS COLLEGE
9,176 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:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

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

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

GMC Mechanic

5,844 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

GMC Technician

1,561 satisfied customers

15 years gm master tech/15 years ASE master tech

car tech

car tech

ASE Certified Technician

449 satisfied customers

25 year master tech and shop owner

Chris (aka- Moose)

Chris (aka- Moose)

GMC Technician

234 satisfied customers

16 years of experience

Paul M ASE Master

Paul M ASE Master

ASE Master Tech

187 satisfied customers

ASE Master Tech 20+ Years

Anthony

Anthony

GMC Technician

489 satisfied customers

GM Certified

Amedee

Amedee

GMC Technician

470 satisfied customers

ASE certified tech with advanced level specialist. Wisconsin certified emissions state inspector

< 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