Whine through speakers when you accelerate - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



Welcome Enthusiast! If you already own a Chevy TrailBlazer or GMC Envoy or perhaps thinking of purchasing such a vehicle, then you have come to the best TrailBlazer and Envoy site on the net! Rainier, Bravada, Ascender, and 9-7x owners welcome too!

You are currently viewing our site as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to search and post topics, communicate privately with other members, respond to polls, upload content, and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.
Join Today!
Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > Announcements & Feedback > Latest GM News

Latest GM News A section for industry news, recalls & technical service bulletins.

TrailVoy.com is the premier GMC Envoy Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
  #1  
Old 03-12-2018, 10:37 AM
Lemonpledge Lemonpledge is offline
Junior Member
 
2007 Chevy TrailBlazer LS
Silverstone Metallic 4.2L I6 2WD
Join Date: Mar 2018
Location: Tampa Florida
Posts: 4
Whine through speakers when you accelerate

I have an 07 trailblazer and sometimes when the radio is on the speakers i hear a whine. When i step on gas it is heard through the speakers. I replaced the head unit of the radio with an aftermarket stereo and still get the whine. But now it is not as load. Is this noise coming from the alternator? And if it is does the alternator need to be grounded? Thanks.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 03-12-2018, 06:26 PM
gstrekkie gstrekkie is offline
Junior Member
 
2007 Chevy TrailBlazer LT
Dark Gray Metallic 4.2L I6 4X4
Join Date: Feb 2013
Location: Westchester , NY
Posts: 1
Whine thru speakers

Hi I have run into this a few years ago with my trailblazer. If you have the stereo controls in the back seat area that may be your culprit. I have an lt with the bose system I found some links here that helped. In a nutshell use some dialectric grease on the connector located inside the center console that connects the rear entertainment controls. changing the head unit might not have an effect especially if you are still using the same wiring harness and the stock amplifier. I havent heard the noise for a few years since I did that. Good Luck hope this helped!
Reply With Quote Quick reply to this message
  #3  
Old 03-12-2018, 06:37 PM
Lemonpledge Lemonpledge is offline
Junior Member
 
2007 Chevy TrailBlazer LS
Silverstone Metallic 4.2L I6 2WD
Join Date: Mar 2018
Location: Tampa Florida
Posts: 4
I don’t have a backseat control center nor swc. I am at a loss. At least it isn’t as loud as it was. But still annoying.
Reply With Quote Quick reply to this message
 
  #4  
Old 05-18-2018, 07:41 AM
rentalcarsuae2 rentalcarsuae2 is offline
Junior Member
 
BMW Buick BMW
Fire Red 6.0L LS2 V8 2WD
Join Date: May 2018
Location: DUBAI
Posts: 16
Nice Post.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #5  
Old 06-02-2018, 01:48 AM
mbelcher mbelcher is offline
Junior Member
 
chevy colorado Chevy Other
4.2L I6 2WD
Join Date: Jun 2018
Location: pikeville, ky
Posts: 12
cd

nice fix gotta try this
Reply With Quote Quick reply to this message
  #6  
Old 06-05-2018, 01:59 AM
wags69 wags69 is offline
Junior Member
 
2007 SAAB 9-7x
Lingonberry Red Metallic 4.2L I6 AWD
Join Date: Feb 2018
Location: Aurora, IL
Posts: 3
It's usually a bad connection on one of the radio components.
Also, try using a ferrite choke to supress the noise
Reply With Quote Quick reply to this message
  #7  
Old 07-02-2018, 01:08 AM
Alainzen's Avatar
Alainzen Alainzen is offline
Junior Member
 
2007 GMC Envoy SLT
Summit White 4.2L I6 4X4
Join Date: Oct 2017
Location: Poway, CA
Posts: 1
Bad ground

I had a similar issue and the aftermarket audio system made it worse. I was able to isolate the issue(s) on the third attempt to the main audio connector, mostly a ground problem.

A lot of zip ties to secure the cable where they are happy to be, no whining! And some patience...
Reply With Quote Quick reply to this message
  #8  
Old 08-04-2018, 10:20 AM
miketexas miketexas is offline
Member
 
2003 Chevy TrailBlazer LS
Black 4.2L I6 2WD
Join Date: Feb 2018
Location: TX
Posts: 351
Sometimes I would hear a whine in my speakers but turning up the volume would drown out my wife.
Reply With Quote Quick reply to this message
  #9  
Old 08-06-2018, 09:24 AM
adamjeeps adamjeeps is offline
Junior Member
 
2006 GMC Envoy SLT
Light Pewter Metallic 4.2L I6 4X4
Join Date: Sep 2004
Location: VA
Posts: 8
Quote:
Originally Posted by gstrekkie View Post
Hi I have run into this a few years ago with my trailblazer. If you have the stereo controls in the back seat area that may be your culprit. I have an lt with the bose system I found some links here that helped. In a nutshell use some dialectric grease on the connector located inside the center console that connects the rear entertainment controls. changing the head unit might not have an effect especially if you are still using the same wiring harness and the stock amplifier. I havent heard the noise for a few years since I did that. Good Luck hope this helped!
I did this and for good measure, dielectric greased up the main purple connector underneath in the middle of the console while I had it all torn apart looking for possible reasons for this issue. Also wrapped some electrical tape over the metal bracket down there where it is fastened. Seems some fixed it by just unplugging and replugging in the harnesses.

I realize this does not help you but try some dielectric grease on your head unit harnesses.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum forums, you must first register.

Please enter your desired user name, your email address and other required details in the form below.
(Only letters, numbers, dashes and underscores are permitted for user names)
The user name that you choose is permanent and can never be changed.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live (ex: Philadephia, PA)
Vehicle Year
Choose your year
Or enter your choice here:
Vehicle Color
Choose your factory color (Custom, Not Listed & Two-Tones; Use Text Field Below)
Or enter your choice here:
Vehicle Make
Choose your make
Or enter your choice here:
Vehicle Model
Choose your model
Or enter your choice here:
Vehicle Engine
Choose your engine
Vehicle Drivetrain
Choose your vehicle drivetrain
Security Question
Fill in the blanks: Tra___oy
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


» Sponsors

Advertising Info

All times are GMT -4. The time now is 05:56 AM.


Chevy TrailBlazer and GMC Envoy Enthusiasts - Copyright 2004 - 2009 All Rights Reserved.
All trademarks referenced herein are property of their respective owners.
RSS Feed