Fuse #8 keeps blowing update! - Ford Mustang Forums : Corral.net Mustang Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 05-13-2017, 06:45 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Mar 2016
Posts: 32
Fuse #8 keeps blowing update!

OK, this has been going on since i bought this car about a year ago. Fuse #8, the 15 amp one that has the courtesy lights, radio/clock, and remote/power mirror on its circuit. I had previously thought the ignition switch was the culprit, and replaced it because i also had occasional weird starts.

Here's what happened today. I put in a new 15 amp into Fuse 8 slot, and smoke comes out of the center console, right by the emergency brake, very close to the remote mirror switch. I'm believing the issue is the switch is shorting to ground. Question for you all - the factory service manual says to use a putty knife and pry out the power mirror switch. I'm afraid of how old it is, it might disintegrate. anyone else have experience pulling this thing out??

Thanks-

RT


1995 Impala SS 396 LT4 intake/heads with GM/Crane 847 Cam Tri-Y headers T56 4.56 gears 58mm TB RAISS intake Cat delete OBD2 PCM Bryan Herter Programming
1974 F-100 390 HP
1991 Ford Mustang LX, 5.0L, Bone Stock
1996 Buick Roadmaster. LT1. Bone Stock
Alchemist is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 05-13-2017, 07:18 PM
Registered User
 
ashleyroachclip's Avatar
 
Trader Feedback: (5)
Join Date: Jun 2003
Location: Roseburg Oregon
Posts: 1,619
They come out pretty easy with the mentioned putty knife .

ashleyroachclip is offline  
post #3 of 5 Old 05-14-2017, 10:08 AM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
i usually push it out from below

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
Sponsored Links
Advertisement
 
post #4 of 5 Old 05-14-2017, 02:59 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Mar 2016
Posts: 32
OK, was able to use the putty knife to pry out the switch, but there's precious little wire to work with. I used the Flathead screwdriver to remove.

Here's what i found out:

1. I removed the switch and no more issues with the fuse #8 - and no weird crackle at the fuse box like before, where it would immediately blow the 15amp fuse.
2. Another big find - it looks like from factory assembly, they forgot to fasten a wire bundle using an attachment push thru, and the six/seven wire bundle feeding the power mirror motor was (gasp) stuck under the emergency brake stop! Even after removing the switch, when working the e-brake lever back and forth, could see some arcing!
3. the green wire and one of the yellow wires were fried/melted and discontinuous, presumably from being stuck under the e-brake stop (steel) for a long time!

So, I may need to remove the top half of part of the console and splice in replacement wire for the green and yellow wires. And will also check continuity of other five wires (two black, other yellow, red, etc.)

The switch actually look ok, just a little gunk from grime and grit on the top parts. A cleaning will help.

1995 Impala SS 396 LT4 intake/heads with GM/Crane 847 Cam Tri-Y headers T56 4.56 gears 58mm TB RAISS intake Cat delete OBD2 PCM Bryan Herter Programming
1974 F-100 390 HP
1991 Ford Mustang LX, 5.0L, Bone Stock
1996 Buick Roadmaster. LT1. Bone Stock
Alchemist is offline  
post #5 of 5 Old 05-14-2017, 04:36 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
you found the short

continuity test is useless, you use a test light, you need current, much more that a ohm meter can produce

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine Cooling Fan 60amp fuse blowing Hypnotic818 94/95 Tech 39 06-05-2017 04:51 PM
91 SSP 5amp dashlight fuse keeps blowing. mustangman101 Electrical & Wiring 1 10-07-2013 09:21 AM
Car wont start! blowing PCM fuse! help!! cougarfan088 SVT & DOHC 7 03-06-2013 01:11 AM
gotta strange problem. fuel pump fuse keeps blowing brando87gt GT & SOHC 3 11-17-2010 08:07 PM
Battery Relocation fuse & fuse location FastGT94 Electrical & Wiring 9 01-21-2004 11:25 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome