GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Traction control light on reduced engine power, No i was…

Customer Question
Traction control light on...

Traction control light on reduced engine power

Mechanic's Assistant: Do you know the code? Did you check the fuses?

No i was just driving home and power reduced and engine and traction control light came on just happened ten minutes ago no stores open

Mechanic's Assistant: What is the model/year of your GMC?

2005 yukon

Mechanic's Assistant: Are you fixing your Yukon yourself? What have you tried so far?

Nothing i just got it home didnt know where to start

Submitted: 11 months ago.Category: GMC
Show More
Show Less
Ask Your Own GMC Question
Answered in 2 minutes by:
9/20/2017
GMC Mechanic: xsvectOR, ASE Certified Technician replied 11 months ago
xsvectOR
xsvectOR, ASE Certified Technician
Category: GMC
Satisfied Customers: 17,484
Experience: car expert!
Verified

do you have a scan tool?

Ask Your Own GMC Question
Customer reply replied 11 months ago
No
GMC Mechanic: xsvectOR, ASE Certified Technician replied 11 months ago

The check engine light or reduced power or traction light comes on when the on-board computer detects a fault in engine driveability or performance, transmission control system or transmission, or the emissions system, and a fault code is set and stored in the computer. Faults that can set the check engine light can range from a vaccuum leak, engine mis-fire, low engine compression, faulty sensor such as O2 sensor or other engine sensor, hydraulic pressure loss in transmission, transmission shift solenoid, open/short in wiring harness, emission evaporative system leak, or one of over a hundred different reasons.
The only way to know what set a fault code and turned the check engine light on is to have a diagnostic scanner hooked up to the on-board computer and read it for stored diagnostic fault codes. Many auto parts stores will do this service for free- (like auto zone)check with you local parts stores. If none in your area do, then you will have to take it to a shop and pay to have the computer read for stored fault codes.

Without knowing the fault codes numbers, it would be irresponsible to guess as to the cause as there are hundreds of possible causes

if you provide me a diagnostic code we can narrow down the cause of failure

Ask Your Own GMC Question
Customer reply replied 11 months ago
Ok
GMC Mechanic: xsvectOR, ASE Certified Technician replied 11 months ago

Hope you can rate my service 5 star

Ask Your Own GMC Question
GMC Mechanic: xsvectOR, ASE Certified Technician replied 11 months ago

Please let me know if you need anything else on it, just reply back and we will continue
If you are good, Please Kindly Rate Me.
A 5 Star Rating is muPlease let me know if you need anything else on it, just reply back and we will continue
If you are good, Please Kindly Rate Me.
A 5 Star Rating is much Appreciated
If you feel I have noPlease let me know if you need anything else on it, just reply back and we will continue
If you are good, Please Kindly Rate Me.
A 5 Star Rating is much Appreciated
If you feel I have not been helpful Please DO NOT RATE ME BAD OR POOR (1 or 2 stars) ,You can always ask me again or I can opt out of your question & open it for another expert ,that will provide you with more or better assistance on this issue
Please keep in mind thaPlease let me know if you need anything else on it, just reply back and we will continue
If you are good, Please Kindly Rate Me.
A 5 Star Rating is much Appreciated
If you feel I have not been helpful Please DO NOT RATE ME BAD OR POOR (1 or 2 stars) ,You can always ask me again or I can opt out of your question & open it for another expert ,that will provide you with more or better assistance on this issue
Please keep in mind that when you rate me , it does not end our conversation.
you can always come back to this conversation and ask me any follow up question you may have on this issue
(you can copy this link page & paste it in your browser when ready and it will open up our conversation again)
Thank You
John S

Ask Your Own GMC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a gmc mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask xsvectOR Your Own Question
xsvectOR
xsvectOR
xsvectOR, ASE Certified Technician
Category: GMC
Satisfied Customers: 17,484
17,484 Satisfied Customers
Experience: car expert!

xsvectOR is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

1,796 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,588 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

626 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

279 satisfied customers

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

JFN1

JFN1

ASE Certified Technician

270 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

228 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

< Previous | Next >

Related GMC Questions
REDUCED POWER" on dash display has been coming up from time
quot;REDUCED POWER" on dash display has been coming up from time to time. Causes engine to stall about 5 seconds after it starts. After it sits for a minute or two, it will start again and stay runnin… read more
xsvectOR
xsvectOR
ASE Certified Technician
High School or GED
17,484 satisfied customers
I have a 04 GMC Yukon Denali. My abs and traction control
I have a 04 GMC Yukon Denali. My abs and traction control light is on. I'm thinking it might be a hub bearing but not for sure. Any ideas? … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2006 GMC Envoy: Dec 2026 replaced fuel pump. Jan 2017 Check
2006 GMC Envoy: Dec 2026 replaced fuel pump. Jan 2017 Check Engine Light on Code P0301 Check all-no issues. Change Sparks. Light off 1 week later Check Engine Light back Code P1516 1 week later Check … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,856 satisfied customers
It's a 2004 yukon, 5.3l engine, check engine light was on,
It's a 2004 yukon, 5.3l engine, check engine light was on, replaced gas cap and it went off for about 3 days, then came back on... Any idea of how troubleshoot? … read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
2007 gmc yukon check engine lights stays on and message
2007 gmc yukon check engine lights stays on and message center reads service traction control, service stabilitrack, traction control off, stabilitrack off. replaced all plugs and wires, changed fuel,… read more
xsvectOR
xsvectOR
ASE Certified Technician
High School or GED
17,484 satisfied customers
GM Yukon: I have a 2003 Yukon. ABS module has been out for
I have a 2003 Yukon. ABS module has been out for awhile (ABS and Brake light on). Recently notice the traction control light flashes on (lose some power). The Alarm has gone off some. The other day, a… read more
XtraTech
XtraTech
Sr. Technician
Bachelor's Degree
149 satisfied customers
GMC Yukon XL 1500 SLE: Bought a 2004 Yukon xl last year and
Bought a 2004 Yukon xl last year and have been having problems with reduce engine power. Very Dangerous had it to the shop six times still having problems… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
GM Yukon xl: I was on the highway with my 2005 yukon xl and
I was on the highway with my 2005 yukon xl and lost power down to 20 miles per hour could of a serious accident this is the second time this has happened does this have anything to do with traction co… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
GMC Yukon: I have a 2004 GMC Yukon XL 1500 4wd. When you start
I have a 2004 GMC Yukon XL 1500 4wd. When you start the car and drive youll begin to give it gas and then randomly it will cut the gas to the motor....then 2-3 seconds later it comes back to life and … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
626 satisfied customers
GMC Yukon SLE: 2010 Yukon Service stabilitrak and check engine
2010 Yukon Service stabilitrak and check engine lights both came on and I got the reduced power message and my speed was limited to 45mph. I followed the procedure in the manual to turn off the stabil… read more
mike a mechanic
mike a mechanic
Auto Mechanic
Vocational, Technical or Trade Scho
89 satisfied customers
gmc envoy: 2004 GMC Envoy 6cyl. two weeks ago I was driving
2004 GMC Envoy 6cyl. two weeks ago I was driving down highway going 65 miles an hour when all of a sudden my car started dinging and the check engine light and engine reduced power light came on so I … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GMC Sierra 1500 HD Classic SLT: I have an 03 sierra 1500HD
I have an 03 sierra 1500HD and it threw a knock sensor code about a month ago. It went off after a week. The last time I drove it was a couple of days ago and everything was fine. I went out to my pic… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
GM Yukon XL: While driving my 2007 GMC Yukon XL at highway
While driving my 2007 GMC Yukon XL at highway speed, the engine light came on with these messages: (1) service Stabilitrack, (2) reduced engine power is reduced, and (3) service traction control. Can … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Yukon XL Denali: My 02 GMC Denali just flashed a ride
My 02 GMC Denali just flashed a service ride control, service stability, and the reduced engine power light came on. It definitely had reduced power.What might be causing this?… read more
KBB
KBB
SERVICE TECHNICIAN
Associate Degree
156 satisfied customers
GM Yukon XL: I have a 07 yukon Xl has app 67,000 miles a few
I have a 07 yukon Xl has app 67,000 miles a few weeks sog i began to get the enignie lite on constant then we began to get stabilitrack disabled traction control off service stabilitrack service tract… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
GM Yukon Denali: I have an 03 GMC Yukon Denali with close
I have an '03 GMC Yukon Denali with close to 200K trouble-free miles. Much like my '97 GMC Sierra pickup, the Denali seems to have inherited gremlins in the electronics system. I was on the Mass. Turn… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
GM Yukon Denali XL: Scare situation last night, my 2010 GMC
Scare situation last night, my 2010 GMC Yukon Denali reduced the power to the engine while driving down the freeway! My wife was driving and to say she freaked is an understatement. The error messages… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 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.

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