5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Horn need help

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Old 05-10-2007, 06:02 PM
  #1  
86_GT_Mustang
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Default Horn need help

Ok my horn went off all by itself like a min ago and i had to hit the wheel to shut it off.

Anyone have a fuse to what one is the horn?
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Old 05-11-2007, 02:05 AM
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ruger311
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Default RE: Horn need help

need to replace your foam between the two copper plates in the horn assembly pull the cover off the horn and add some new foam from like a cheap sponge or something if you disconnect your horn via fuse you also cut out your cruise control if you have it
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Old 05-11-2007, 02:23 AM
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88BlueGT
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Default RE: Horn need help

why cut cruise control?
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Old 05-11-2007, 03:42 AM
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Blckstng93
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Default RE: Horn need help

The horn, cruise, and the cig lighter run off the same fuse.
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Old 05-11-2007, 06:38 AM
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BlueDemon
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Default RE: Horn need help

ORIGINAL: ruger311

need to replace your foam between the two copper plates in the horn assembly pull the cover off the horn and add some new foam from like a cheap sponge or something if you disconnect your horn via fuse you also cut out your cruise control if you have it
+1 on the foam. The same thing happened to me and I replaced the foam in the horn button with some foam I got out of a tool kit( It was in there to separate the tools in the kit so they wouldn't rub together when the kit was closed)
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Old 05-11-2007, 06:43 AM
  #6  
89blackonblack
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Default RE: Horn need help

did anyone read my post about the freeze plug?

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Old 05-11-2007, 09:40 AM
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Scalihoo
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Default RE: Horn need help

Good tip on the foam, I had my horn stick on mea few weeks ago, first thing I did was pulled the fuse& removed the horncover& silicone sprayedit { mostly the bottom lip of the cover }, it's been working fine since..but if it starts sticking again I know to add the foam..
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Old 08-12-2007, 08:13 AM
  #8  
benpharm
 
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Default RE: Horn need help

I have a 1988 LX 5.0. I had a similiar problem. My car was sitting for a couple of months. The battery needed charging. While charging the horn went off by itself. I removed the center cap and had to disconnect the black & purple wires.if I connect the horn it still sounds.It doesn't seem as if the foam trick is applicable here. Any thoughts?
Ben
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Old 08-12-2007, 09:52 AM
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PRO50SC
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Default RE: Horn need help

ORIGINAL: 86_GT_Mustang

Ok my horn went off all by itself like a min ago and i had to hit the wheel to shut it off.

Anyone have a fuse to what one is the horn?
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Old 08-12-2007, 09:53 AM
  #10  
PRO50SC
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Default RE: Horn need help

ORIGINAL: benpharm

I have a 1988 LX 5.0. I had a similiar problem. My car was sitting for a couple of months. The battery needed charging. While charging the horn went off by itself. I removed the center cap and had to disconnect the black & purple wires.if I connect the horn it still sounds.It doesn't seem as if the foam trick is applicable here. Any thoughts?
Ben
Possibly a wire or relay problem.
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