Audio/Electronics Stereo System Installation Info, Amplifiers, Subwoofers, Radar Detectors, Police Scanners, and CB Radios for the Corvette
Sponsored by:
Sponsored by: Innova

Alternator Whine Question

Thread Tools
 
Search this Thread
 
Old Feb 15, 2012 | 08:18 AM
  #1  
maxp's Avatar
maxp
Thread Starter
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2006
Posts: 4,732
Likes: 34
From: Monument CO
Default Alternator Whine Question

My 2008 C6 has the stock Bose system and I have developed an intermittant alternator whine - high pitched, increases in volume along with engine RPM. Since I have made no changes to the system, and the whine is intermittant, is this just a loose connection somewhere? It is coming from the passenger door speaker.

Thanks
Reply
Old Feb 15, 2012 | 09:40 AM
  #2  
Thrash's Avatar
Thrash
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2007
Posts: 3,327
Likes: 166
From: Summerton SC
Tech Contributor
Default

Originally Posted by maxp
My 2008 C6 has the stock Bose system and I have developed an intermittant alternator whine - high pitched, increases in volume along with engine RPM. Since I have made no changes to the system, and the whine is intermittant, is this just a loose connection somewhere? It is coming from the passenger door speaker.

Thanks
Could be several things. Work from easy to harder:
1) Check all wiring connects from HU.
2) Check all ground connects.
3) Ground the HU case.
4) Add a ground loop isolator.
5) Add a Big-3 wiring upgrade.

Good luck and let us know how it goes ...
Reply
Old Feb 15, 2012 | 04:22 PM
  #3  
markcz's Avatar
markcz
Tech Contributor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2003
Posts: 7,035
Likes: 134
From: North Augusta, SC
Default

Check your spark plug wires, if you have metal boots on them they should be down around the spark plug connection.
Reply
Old Feb 16, 2012 | 06:23 AM
  #4  
WAwatchnut's Avatar
WAwatchnut
Safety Car
Supporting Lifetime
10 Year Member
 
Joined: Jan 2007
Posts: 4,295
Likes: 8
From: Issaquah WA
Default

The fact that it's coming from just the passenger door would make me suspect an issue with one of the electronic components in the car - possibly one of the stock amps, or the head unit - or wiring going to the door speakers. Other factors as suggested would most likely affect both sides.
Reply
Old Feb 16, 2012 | 07:50 AM
  #5  
maxp's Avatar
maxp
Thread Starter
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2006
Posts: 4,732
Likes: 34
From: Monument CO
Default

Thanks for the suggestions - of course on my way to work this morning there was no whine, but it will be back. I will see what I can find over the weekend
Reply

Get notified of new replies

To Alternator Whine Question





All times are GMT -4. The time now is 08:08 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE