Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

Fuse Box

Thread Tools
 
Search this Thread
 
Old May 17, 2019 | 08:44 PM
  #1  
P4ULT's Avatar
P4ULT
Thread Starter
Too many posts.. I need a life!!
 
Joined: Jul 2006
Posts: 956
Likes: 0
From: Bristol
Default Fuse Box

Hi guys

does anyone know of where I can get a fuse box for a 4x4 saph cos. I have a problem with the headlights and the guys at the garage have traced it to the fuse box wiring and it appears to have melted. It looks like a previous repair was carried out at some point, likely at a previous mot, when one of the headlights was playing up a couple of years ago

so looks like I am after a new fuse box or some ideas as to how to fix if it’s a common issue. All suggestions/advice welcome.
Reply
Old May 20, 2019 | 12:03 PM
  #2  
martysmartie's Avatar
martysmartie
PassionFord Post Whore!!
iTrader: (1)
 
Joined: Dec 2007
Posts: 8,460
Likes: 103
Default

Replacing the fuse box is a major job, as the entire loom needs to be removed.

Firstly, you need to ascertain the root cause as to why it melted (i.e. have the headlights been upgraded?)

Given the problem, I would simply suggest the lighting circuit can not be rewired independently, which would be far easier.

Martin
Reply
Old May 20, 2019 | 02:27 PM
  #3  
P4ULT's Avatar
P4ULT
Thread Starter
Too many posts.. I need a life!!
 
Joined: Jul 2006
Posts: 956
Likes: 0
From: Bristol
Default

Originally Posted by martysmartie
Replacing the fuse box is a major job, as the entire loom needs to be removed.

Firstly, you need to ascertain the root cause as to why it melted (i.e. have the headlights been upgraded?)

Given the problem, I would simply suggest the lighting circuit can not be rewired independently, which would be far easier.

Martin
The guys at the garage mentioned it is a big job. The headlights haven’t been upgraded, are you saying the headlights could be wired independently. Getting hold of a fuse box looks like it may be easier said than done.
Reply
Old May 20, 2019 | 04:19 PM
  #4  
Caddyshack's Avatar
Caddyshack
10K+ Poster!!
 
Joined: Mar 2013
Posts: 10,837
Likes: 1,033
From: Guildford
Default

I would have thought you could make up a new wire harness just for the lights and run a new fused relay just for them
Reply
Old May 20, 2019 | 08:18 PM
  #5  
P4ULT's Avatar
P4ULT
Thread Starter
Too many posts.. I need a life!!
 
Joined: Jul 2006
Posts: 956
Likes: 0
From: Bristol
Default

Originally Posted by Caddyshack
I would have thought you could make up a new wire harness just for the lights and run a new fused relay just for them
Hoping so. Will contact an auto electrician and see what they say.
Reply
Old May 21, 2019 | 10:57 AM
  #6  
martysmartie's Avatar
martysmartie
PassionFord Post Whore!!
iTrader: (1)
 
Joined: Dec 2007
Posts: 8,460
Likes: 103
Default

Yes, they certainly could, which is appropriate for the following reasons.

. Alleviating a heavy load on the fuse box on these is never a bad thing, given it's overloaded as standard.
. The wiring at best is 25+ years old, during which time it would have built resistance, which may be a reason why you have the issue you have.

This is why I suggested rewiring independently, as what the garage are proposing (i.e. replacing the fusebox) is a major/costly undertaking.

Martin
Reply
Old May 21, 2019 | 03:58 PM
  #7  
cossynut2's Avatar
cossynut2
PassionFord Post Whore!!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2013
Posts: 4,587
Likes: 403
From: Holbury,Southampton
Default

Originally Posted by martysmartie
Yes, they certainly could, which is appropriate for the following reasons.

. Alleviating a heavy load on the fuse box on these is never a bad thing, given it's overloaded as standard.
. The wiring at best is 25+ years old, during which time it would have built resistance, which may be a reason why you have the issue you have.

This is why I suggested rewiring independently, as what the garage are proposing (i.e. replacing the fusebox) is a major/costly undertaking.

Martin
You are right about the old original wiring, that is why a lot of us have had new engine, fans and fuel pump looms fitted which is costly but I am sure a good auto electrician should be able to do something to fix his problem.
Reply
Old May 21, 2019 | 07:57 PM
  #8  
P4ULT's Avatar
P4ULT
Thread Starter
Too many posts.. I need a life!!
 
Joined: Jul 2006
Posts: 956
Likes: 0
From: Bristol
Default

I have had new fuel pump and can loom but on the original wiring loom although been assured all looks good on that front..
Reply
Old May 26, 2019 | 09:51 AM
  #9  
martysmartie's Avatar
martysmartie
PassionFord Post Whore!!
iTrader: (1)
 
Joined: Dec 2007
Posts: 8,460
Likes: 103
Default

Originally Posted by P4ULT
I have had new fuel pump and can loom but on the original wiring loom although been assured all looks good on that front..
I assume it's just the one fuse that melted?

Martin
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rallycross
General Car Related Discussion.
2
Apr 7, 2019 03:47 PM
Ollie MK5 Turbo
General Car Related Discussion.
33
Sep 16, 2011 07:10 AM
montecos400
General Car Related Discussion.
4
Apr 19, 2007 07:09 PM
kjc300
General Car Related Discussion.
17
Dec 17, 2005 09:09 PM
dickie
Technical help Q & A
5
Nov 25, 2003 07:21 PM




All times are GMT. The time now is 05:51 PM.