Alternator Whine - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 02-08-2013, 07:52 PM   #1
LiciouzSVT
Focus Addict
 
LiciouzSVT's Avatar
 
Join Date: Feb 2011
Fan#: 83568
Location: Tacoma, WA
What I Drive: 2013 Performance Blue ST

Posts: 566
FF Reputation: 1 LiciouzSVT Good Standing Member
Buy-Sell-Trade Rating: (6)
Alternator Whine

I am attempting to fix my buddies focus. It is a 2004 SVT. It runs fine but the alternator is making a pretty loud whining sound that gets louder as the rpm's increase. The alternator is new from C-F-M. It is that PA performance alternator. The serpentine belt and battery has also been replaced within the last couple of months. Another thing to note is that he has an aftermarket stereo system that was installed professionally. The sound just started recently. Any ideas with that information?


__________________
2003 Screamin' Yellow SVT - Wrecked
2004 Silver SVT- Sold
2013 Performance Blue ST- BEASTY
LiciouzSVT is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-08-2013, 08:26 PM   #2
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 4,505
Points 6,375, Level 52
Points: 6,375, Level: 52 Points: 6,375, Level: 52 Points: 6,375, Level: 52
Level Up 13% Completed
Level up: 13% Level up: 13% Level up: 13%
Forum Activity 47%
Activity: 47% Activity: 47% Activity: 47%
FF Reputation: 24 freemind Great Standing Member
Buy-Sell-Trade Rating: (23)
Go get a ground loop isolator.
__________________
133whp-126ftlbsTQ Eclipse CD8443,Eclipse PA5422, JBL GTO751EZ, PPI 356cs(Rebranded A/D/S 346cs), JBL p1024, SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 09:22 PM   #3
LiciouzSVT
Focus Addict
 
LiciouzSVT's Avatar
 
Join Date: Feb 2011
Fan#: 83568
Location: Tacoma, WA
What I Drive: 2013 Performance Blue ST

Posts: 566
FF Reputation: 1 LiciouzSVT Good Standing Member
Buy-Sell-Trade Rating: (6)
Thanks Freemind I will go check it out.
Here is a video of the sound just for reference.

__________________
2003 Screamin' Yellow SVT - Wrecked
2004 Silver SVT- Sold
2013 Performance Blue ST- BEASTY
LiciouzSVT is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 09:24 PM   #4
mikeeshaq
Focus Addict
 
Join Date: Jan 2010
Fan#: 72526
Location: Sugar Land,TX ex MN, TX
What I Drive: 2010 Transit Connect

Posts: 1,046
Points 626, Level 12
Points: 626, Level: 12 Points: 626, Level: 12 Points: 626, Level: 12
Level Up 52% Completed
Level up: 52% Level up: 52% Level up: 52%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 15 mikeeshaq Great Standing Member
Buy-Sell-Trade Rating: (0)
"
OH OH The previous post came by as I was writing this
mikeeshaq is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 09:35 PM   #5
LiciouzSVT
Focus Addict
 
LiciouzSVT's Avatar
 
Join Date: Feb 2011
Fan#: 83568
Location: Tacoma, WA
What I Drive: 2013 Performance Blue ST

Posts: 566
FF Reputation: 1 LiciouzSVT Good Standing Member
Buy-Sell-Trade Rating: (6)
So I am a noob when it comes to electrical things and did a little researching. Would a ground loop isolator eliminate this noise coming from the alternator or just noise coming from speakers? I really don't hear any noise coming from the audio equipment but that doesn't mean it's not there I guess.
__________________
2003 Screamin' Yellow SVT - Wrecked
2004 Silver SVT- Sold
2013 Performance Blue ST- BEASTY
LiciouzSVT is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 11:08 PM   #6
tukaniSVT
FF PHOTOG ENTHUSIAST
 
tukaniSVT's Avatar
 
Join Date: Mar 2004
Fan#: 5521
Location: SW Houston, TX
What I Drive: 2003 SVT Focus 2009 BMW 335i

Posts: 14,970
Points 36,339, Level 100
Points: 36,339, Level: 100 Points: 36,339, Level: 100 Points: 36,339, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 34 tukaniSVT Great Standing Member
Buy-Sell-Trade Rating: (1)
Hmm ... You know I guess it hasn't bothered me in a while.

But my SVT has a whining Alternator as well. And it's been like that since I bought it in 2003. brand new.

Happened with the Stock New Ford one, one from AutoZone, O'Reilly and from online sources.

I have not tried the CFM one.

But that sound seems normal to me. If you are not loosing power to your auxiliaries or battery. I think you are fine.

Ray
__________________
Hatch Nation Member: #147

R.I.P - FELLOW FF MEMBER, IZZY, BLK2k3GTS, will always be remembered. We will compete on a different course again one day.
tukaniSVT is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 11:10 PM   #7
tukaniSVT
FF PHOTOG ENTHUSIAST
 
tukaniSVT's Avatar
 
Join Date: Mar 2004
Fan#: 5521
Location: SW Houston, TX
What I Drive: 2003 SVT Focus 2009 BMW 335i

Posts: 14,970
Points 36,339, Level 100
Points: 36,339, Level: 100 Points: 36,339, Level: 100 Points: 36,339, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 34 tukaniSVT Great Standing Member
Buy-Sell-Trade Rating: (1)
Oh and looked up the isolator. It's too help take the noise away from your speakers.

Ray
__________________
Hatch Nation Member: #147

R.I.P - FELLOW FF MEMBER, IZZY, BLK2k3GTS, will always be remembered. We will compete on a different course again one day.
tukaniSVT is offline  
    Reply With Quote Quick reply to this message
Old 02-08-2013, 11:20 PM   #8
LiciouzSVT
Focus Addict
 
LiciouzSVT's Avatar
 
Join Date: Feb 2011
Fan#: 83568
Location: Tacoma, WA
What I Drive: 2013 Performance Blue ST

Posts: 566
FF Reputation: 1 LiciouzSVT Good Standing Member
Buy-Sell-Trade Rating: (6)
Alright good to know. It runs fine the only thing I notice that seems abnormal to me is that the dash lights get brighter as the rpms go up and then get dim at idle. So should I tell him to just not worry about it then?
__________________
2003 Screamin' Yellow SVT - Wrecked
2004 Silver SVT- Sold
2013 Performance Blue ST- BEASTY
LiciouzSVT is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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


All times are GMT -5. The time now is 07:41 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat