Replacement Alternator Heat Issues - Page 2 - Taurus Car Club of America : Ford Taurus Forum
Register Home Forums Active Topics Topic Finder Photos Members List Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance
TaurusClub.com is the premier Ford Taurus Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 11-19-2012, 07:55 PM   #11 (permalink)
Technical Advisor
 
behlinla's Avatar
 
Member Number: 14275
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Drives: A blue car
Visit: My Garage
Posts: 7,173
Trader Score: 0 reviews
Rep Power: 77
behlinla has a reputation beyond reputebehlinla has a reputation beyond reputebehlinla has a reputation beyond reputebehlinla has a reputation beyond reputebehlinla has a reputation beyond reputebehlinla has a reputation beyond repute
Default

Quote:
Originally Posted by martinamw View Post
The fuse didn't blow, but the cable from the battery to the megafuse was fried, and so was the actual alternator.. I could be thinking about it wrong, but shouldn't the fuse have blown ?
That's interesting. Yes, the fuse is supposed to blow if the alternator were to short out and prevent the smoldering mass you ended up with. Is it possible the positive cable on the battery side of the fuse somehow touched grounded metal at the fuse connection? Or something in the fuse shorted to ground?

Did you replace the mega fuse with the cable? I would.
behlinla is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-19-2012, 07:59 PM   #12 (permalink)
Devoted Member
 
Lgbpop's Avatar
 
Member Number: 7489
Join Date: Mar 2006
Location: Fort Myers, Florida USA
Chapter: Southeast
Drives: '90 Taurus GL Wagon 3.0L; '65 Rambler Ambassador 990 convertible
Visit: My Garage
Posts: 2,950
Trader Score: 0 reviews
Rep Power: 44
Lgbpop has a brilliant futureLgbpop has a brilliant futureLgbpop has a brilliant future
Default

If the cable connection at the battery was loose and/or the cable itself was too small for the load, that could go before the fuse. The fuse is supposed to be the weakest link, but if something else presents itself Murphy's Law comes into play.

Now that you are all fixed up, I recommend replacing the mega fuse. Even if it didn't blow before the other stuff, it still took a beating electrically.
Lgbpop is offline   Reply With Quote
Old 11-19-2012, 08:23 PM   #13 (permalink)
Junior Member
 
Member Number: 51265
Join Date: Nov 2012
Chapter: Northeast
Drives: 1997 Mercury Sable DOHC Duratec
Visit: My Garage
Posts: 7
Trader Score: 0 reviews
Rep Power: 0
martinamw is an unknown quantity at this point
Default

There were no obvious shorts by the megafuse, it's all pretty secure and covered in plastic.

I'll replace the fuse anyway, and have a closer look at the fuse box for possible shorts.

Thanks for all the help guys.
martinamw is offline   Reply With Quote
Old 11-20-2012, 10:08 AM   #14 (permalink)
Devoted Member
 
SoNic67's Avatar
 
Member Number: 35029
Join Date: Mar 2011
Chapter: Northeast
Drives: 1996 Sable LS, 3.0L V6 24V Duratec, AX4N
Visit: My Garage
Posts: 1,683
Trader Score: 0 reviews
Rep Power: 11
SoNic67 has a spectacular aura about
Default

Don't worry about the megafuse. Your short happened at alternator side, no signifiant current flowed trough the megafuse...
SoNic67 is offline   Reply With Quote
Old 11-20-2012, 11:07 AM   #15 (permalink)
Devoted Member
 
Lgbpop's Avatar
 
Member Number: 7489
Join Date: Mar 2006
Location: Fort Myers, Florida USA
Chapter: Southeast
Drives: '90 Taurus GL Wagon 3.0L; '65 Rambler Ambassador 990 convertible
Visit: My Garage
Posts: 2,950
Trader Score: 0 reviews
Rep Power: 44
Lgbpop has a brilliant futureLgbpop has a brilliant futureLgbpop has a brilliant future
Default

Quote:
Originally Posted by martinamw View Post
The fuse didn't blow, but the cable from the battery to the megafuse was fried, and so was the actual alternator.. I could be thinking about it wrong, but shouldn't the fuse have blown ?
Something caused that cable to go, and it seems to me it would have gone straight from the alternator through the fuse to the cable.
Lgbpop is offline   Reply With Quote
Old 11-21-2012, 10:25 AM   #16 (permalink)
Junior Member
 
Member Number: 51265
Join Date: Nov 2012
Chapter: Northeast
Drives: 1997 Mercury Sable DOHC Duratec
Visit: My Garage
Posts: 7
Trader Score: 0 reviews
Rep Power: 0
martinamw is an unknown quantity at this point
Default

Here's a small diagram of the link between the Battery and the Alternator.

One possibility is that I think the cable between the megafuse and the alternator, is thicker or lower guage, then the battery to megafuse.


(The small thick black line is the megafuse)
Attached Thumbnails
Replacement Alternator Heat Issues-alternator-cable-damage-diagram.jpg  
martinamw is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not 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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:40 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2