GMC

GMC Troubleshooting Questions? Ask a Mechanic for Answers

Ask an Expert,
Get an Answer ASAP!

GMC

Working on 2006 gmc envoy xl 4.2L. when you turn key

Customer Question
working on 2006 gmc envoy...
working on 2006 gmc envoy xl 4.2L. when you turn key sometimes engine turns over but will not fire up sometimes when you turn key you get nothing. we replaced ignition switch in steering column but did no good. any suggestion would be appreciated.
Submitted: 2 years ago.Category: GMC
Show More
Show Less
Ask Your Own GMC Question
Answered in 28 minutes by:
8/13/2015
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29,591
Experience: GM Grand Master Technician 2007. 14 year experience.
Verified

Hi there, I am Cam. Can I get your name please? When you say you turn the key and get nothing, you mean no lights on the dash or anything?

Ask Your Own GMC Question
Customer reply replied 2 years ago
my name Lewis. we do get lights in dash and headlight, but engine will not turn over.
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Ok Lewis, specifically do you get the check engine light?

Ask Your Own GMC Question
Customer reply replied 2 years ago
I do
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

OK, Does it ever flash a security light or not show the gear position when this happens?

Ask Your Own GMC Question
Customer reply replied 2 years ago
no
Customer reply replied 2 years ago
when you cut key on everything lights up on dash but you do not hear fuel pump or anything else even if it does turn over
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Were there any repairs prior to this issue? IT does sound strange, possibly a ground wire or even an Powertrain Control Module (PCM)

Ask Your Own GMC Question
Customer reply replied 2 years ago
not that we know of. customer didn't offer
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Ok, your a shop, So then you have a scan tool? I would like to know if the modes match when watching the mode master status in the Body Control Module (BCM).

Ask Your Own GMC Question
Customer reply replied 2 years ago
our scan tool is out of use
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

OK, we need to see what codes and data are being sent. IF you had it never turning over then I would look to a starter, and that may be worth looking at without codes or data. Can you check power at the starter terminal in start?

Ask Your Own GMC Question
Customer reply replied 2 years ago
no problem with starter. Have already checked.
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Then we need data. I hate to default to that, but its an electronically controlled system.

Ask Your Own GMC Question
Customer reply replied 2 years ago
ok thanks
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Is there more I can get you at the moment?

Ask Your Own GMC Question
Customer reply replied 2 years ago
no thanks
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Thank you. If you need more, please reply back to me. Thank you for allowing me to assist you. Please rate my answer OK to Excellent service and feel free to ask any follow up questions regarding this issue you may have.
Please know that the only compensation for my time spent assisting you is when you provide that rating.

Ask Your Own GMC Question
Customer reply replied 2 years ago
ok
GMC Mechanic: Gm Tech (Cam), GMC Mechanic replied 2 years ago

Thanks.

Ask Your Own GMC Question
Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29,591
29,591 Satisfied Customers
Experience: GM Grand Master Technician 2007. 14 year experience.

Gm Tech (Cam) 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

29,591 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,542 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

563 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

255 satisfied customers

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

George H.

George H.

ASE MasterTechnician

225 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

216 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

< Previous | Next >

Related GMC Questions
With the engine running an turn the headlight switch on the
with the engine running an turn the headlight switch on the engine goes into reduced power mode. If you pull the dimmer the engine dies. … read more
roy
roy
Associate Degree
3 satisfied customers
No stater. 06 envoy xl denali 5.3. Is like low voltage. Im
no stater JA: What is the model/year of your GMC? Customer: 06 envoy xl denali 5.3 JA: Are you fixing your Envoy XL yourself? What have you tried so far? Customer: is like low voltage JA: Anything els… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,952 satisfied customers
2003 gmc envoy xl slt front and rear a/c blowers not
2003 gmc envoy xl slt front and rear a/c blowers not working. Also, cold air seeps through the front vents when car is in motion. However, it doesn't always stay cold and it frequently stops seeping o… read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,919 satisfied customers
05 Envoy window operates one direction. 2005 Envoy XL RR
05 Envoy window operates one direction. 2005 Envoy XL RR Passenger door. I took it apart and put new motor in and still would not work. Disconnected everything, and with just the motor plugged in (new… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 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/MECHANIC
Associates
3,952 satisfied customers
I have a 2003 envoy xl v8,200k miles.the radio volume is
I have a 2003 envoy xl v8,200k miles.the radio volume is very low on fm. it has on star which comes out clear and loud.rear headphones and radio don't work period.only see fuse box under hood and all … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,952 satisfied customers
2006 gmc envoy xl 5.3 4wd. Car off randomly and won't start
2006 gmc envoy xl 5.3 4wd . Car shits off randomly and won't start until it cools. Not overheating stays at 210 temp. Scanner shows throttle body codes, evap, and ignition switch . I changed throttle … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,952 satisfied customers
I just bought a GMC ENVOY XL for my mom, she is getting
I just bought a GMC ENVOY XL for my mom, she is getting older should I wanted something full frame but small for her. Anyways I got a great deal on the car but it needs work, it's got 182k it's runnin… read more
Reggie Whiddon
Reggie Whiddon
Shop Foreman
Vocational, Technical or Trade School
155 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
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
I have a 2004 GMC envoy XL My headlights are not working the
I have a 2004 GMC envoy XL My headlights are not working the fog lights work and yellow lights in the headlights work but the main ones do not the brightest do what is wrong and how do I fix… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
Trying to figure out the wiring to my 03 gmc envoy xl slt.
Trying to figure out the wiring to my 03 gmc envoy xl slt. It was cut when it was broken into. Trying to put in a reverse harness. But confused. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,919 satisfied customers
2003 GMC Envoy XL brake lights stay on and cruise control
2003 GMC Envoy XL brake lights stay on and cruise control does not work … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,542 satisfied customers
I just bought a 2004 GMC envoy XL loaded with all options
Hi I just bought a 2004 GMC envoy XL loaded with all options The heater/ AC fan doesn't work . This SUV is equiped with a climate control system with 3 knobs 1 for fan speed I for temp by degree celsi… read more
Kavey
Kavey
86 satisfied customers
I have a 2003 envoy xl. Had rotors pads and calipers
I have a 2003 envoy xl. Had rotors pads and calipers replaced but tech at shop can't get brake pedal up.Tried bleeding with machine & gravity bleed although don't think he bled rear because I only rep… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
563 satisfied customers
I Have a 2004 GMC envoy xl with all options including
I Have a 2004 GMC envoy xl with all options including Auto-Climate Control with 3 knobs 1 for variable fan speed. 1 for temp setting in degrees cel. and 1 for vent mode control . My fan quit working. … read more
Kavey
Kavey
86 satisfied customers
I have a 2003 GMC envoy XL, right now it is saying unknown
hI I have a 2003 GMC envoy XL, right now it is saying unknown driver, sounds chime gasoline indicator and battery start moving . It is intermittent because now and then do the thing … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2004 GMC envoy XL and as seen in my pictures all
I have a 2004 GMC envoy XL and as seen in my pictures all the way at the top of the rear where the brake light is that whole black piece across the top is missing what is that piece called and a part … read more
Dan
Dan
Dealership Technician
183 satisfied customers
I have a 2004 GMC Envoy XL with the 4.2l. It sat for a while
I have a 2004 GMC Envoy XL with the 4.2l. It sat for a while with a bad transmission. I had the new transmission put in. I also put on new tires. Had all the tie rods and ball joints replaced along wi… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 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