GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Rear defroster does not work on 2007 gmc envoy

Customer Question
rear defroster does not work on 2007 gmc envoy
Submitted: 9 months ago.Category: GMC
Ask Your Own GMC Question
Answered in 6 hours by:
11/13/2017
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago
Peter Bagley
Peter Bagley, Auto Service Technician
Category: GMC
Satisfied Customers: 1,323
Experience: master tech
Verified

Hello and welcome to just answer, my name is ***** ***** master tech here to help. I cannot see or hear your vehicle so I rely on your patience and input to my questions so I can help you better.I have read your notes and have a question before we proceed.

Ask Your Own GMC Question
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

Have you got a circuit tester or multi-meter to do some basic tests ?

Ask Your Own GMC Question
Customer reply replied 9 months ago
i dont have amulti meter or a circuit tester but i will get one today where is the power grid you want me to test ? is it in the tail gate area? i have the tail gate apart so i understand the access
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

The power grid is on each side of the defroster lines , it attaches all the lines together, one side will be power the other side ground so you have to check both for appropriate readings. If there is a bad reading such as no power or no ground , the next step would be to check the wiring cord going from the body to inside the tail gat where the connection to the grids are, It may have broken a wire in side that cord from flexing it opening and closing all those years.

Ask Your Own GMC Question
Customer reply replied 9 months ago
Just got finished checking the power grid and checked all wires for breaks . Everything is in good shape . Tested all lines in the window for breaks all is good . As I said in my initial question I changed the module in the tail gate and the one I bought drained the battery. So I put the old one back . Do U know the part number for the module? Are there different part numbers for that module? Here is a picture of the module that came with the car .
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

the numbers on the unit should match the replacement or it is wrong. Also if aftermarket I would use just OME when it comes to electronic parts.

Ask Your Own GMC Question
Customer reply replied 9 months ago
Would u suggest a Oem from a dealer or do u know of a web site that I could buy from ?
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

E bay some times has deals on OME parts as I purchased an ECU there and was good.

Ask Your Own GMC Question
Customer reply replied 9 months ago
When I look up that part on many oem sites I get an alternate part number if I look on eBay I get used items do u work at dealer to check this out or what cross referencing part that would work
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

ours may be different as I am in Canada so what I would recommend is call your closest dealers parts department and they will assist you free of charge to get the proper part number

Ask Your Own GMC Question
Customer reply replied 9 months ago
Ok Im on the road right now I'll check on the way home at the dealer closest to me
GMC Mechanic: Peter Bagley, Auto Service Technician replied 9 months ago

keep me informed

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 Peter Bagley Your Own Question
Peter Bagley
Peter Bagley
Peter Bagley, Auto Service Technician
Category: GMC
Satisfied Customers: 1,323
1,323 Satisfied Customers
Experience: master tech

Peter Bagley 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
My 2007 gmc envoy 4.2 L 4x4 rear defroster does not work. so
my 2007 gmc envoy 4.2 L 4x4 rear defroster does not work . so far i have changed the control box on the dash , i have checked for wiring breaks including the ground wire , i have checked for breaks in… read more
Peter Bagley
Peter Bagley
Auto Service Technician
Vocational, Technical or Trade School
1,323 satisfied customers
I own a 2007 gmc envoy 6cyl 4x4 my rear defroster does not
hi , i own a 2007 gmc envoy 6cyl 4x4 my rear defroster does not work . iam trying to change the relay for the defroster but cannot locate it . looked at the fuse block under hood and rear seat but no … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
2007 gmc envoy rear defroster no power, no power grid lines
fixing myself, checked for power to grid , check fuse fuse ok … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a 2004 gmc envoy xuv.... I cant get the rear window
I have a 2004 gmc envoy xuv.... I cant get the rear window to roll up and the rewtractable roof isnt working either? … read more
Marvin the Mechanic
Marvin the Mechanic
87 satisfied customers
Been having issues with the read tailgate/endgate on my 2004
Been having issues with the read tailgate/endgate on my 2004 gmc envoy xuv for some time. today, I noticed that one of the sensors that is attached to the rear window is not longer attached (passenger… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Trying to replace AC actuator on GMC 2004 Envoy. Hot on
trying to replace AC actuator on GMC 2004 Envoy. Hot on passenger side when AC on. The actuator on the passenger side behind the radio was hard to get out but it appears to operate the defroster. The … read more
Todd M
Todd M
Owner
ASE Certification
1,842 satisfied customers
Its stalling when I stop and voltage meter goes down unless
Its stalling when I stop and voltage meter goes down unless I always have my foot on the gas … read more
Ivan Alvarez
Ivan Alvarez
Lead technician
192 satisfied customers
GM Yukon Denali: I have a 2007 GMC Yukon Denali. The front
I have a 2007 GMC Yukon Denali. The front ac vents don't throw out any air. But the rear ac vents do throw. The air that does come out through the rear vents is not cold air.I checked the AC compresso… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
I HAVE A 2007 GMC ENVOY. I GOT INTO MY CAR THE OTHER NIGHT
I HAVE A 2007 GMC ENVOY. I GOT INTO MY CAR THE OTHER NIGHT AND COULD NOT GET MY LOW BEAM HEADLIGHTS TO COME ON AT ALL. THE HIGH BEAM STILL WORKED. CAN YOU HELP ME?… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
2,571 satisfied customers
GMC Envoy SLE: I am trying to remove the front stabilizer
I am trying to remove the front stabilizer bar on a 2007 GMC Envoy but so far no luck. Is there is any tricks on how to remove this bar. Ed Halifax, PA.… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GMC Envoy SLE: I have a 2007 GMC Envoy with stereo speaker
I have a 2007 GMC Envoy with stereo speaker problems. I lost sound in the rear and drivers front. the sound in the front drivers side will come and go. the front passengers side sounds very tinny. I'v… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
626 satisfied customers
GMC Envoy SLE: I have a 2004 GMC Envoy SLE. I need a new rear
I have a 2004 GMC Envoy SLE. I need a new rear view mirror with temperature, compass. The mirror does not have an on/off button for auto-dimming and it does not have onstar. Where can I find a mirror … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GMC Envoy SLE: I have a 2002 GMC Envoy SLE and have developed
I have a 2002 GMC Envoy SLE and have developed an ac problem. I am getting air out of my vents and my defrost but not my floor vents or rear vents. I think an actuator has gone out after a battery rep… read more
tripletauto
tripletauto
Shop Foreman
Associate Degree
140 satisfied customers
GMC Envoy SLT: I have GMC Envoy 2007, fuel gage on the instrument
I have GMC Envoy 2007, fuel gage on the instrument panel doesn't work properly- when I start the engine the gage shows the right amount of gas, but after few minutes the arrow dropped to 0 point then … read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
GMC Envoy SLT: I Own a 2007 GMC ENVOY and last week I left
I Own a 2007 GMC ENVOY and last week I left the sunroof open and the windows down. the drivers side window controls will not work now. I ordered and received a new control panel and it still will not … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Envoy: Envoy code P0506 2007 GMC Envoy 6 cyl Two Wheel
Envoy code P0506 2007 GMC Envoy 6 cyl Two Wheel Drive Automatic 62000 miles What does it mean when your RPM's are to low?? Do I need to seek immediate attention on this? Is it imperative the dealershi… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
GMC Envoy SLE: Why would the air flow not completely switch
Why would the air flow not completely switch from defrost to dash vents on a 2004 GMC Envoy with a 4.2L engine ?… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Envoy SLT: 2002 GMC Envoy the temperture reading on the
2002 GMC Envoy the temperture reading on the radio dial is stuck at 50 degrees for outside temperture. How do I correct this?… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 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