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Author
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Topic: Horn and clutch pedal
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wadeb3
Gearhead Posts: 168
From: Winston-Salem, NC
Registered: Jul 2004
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posted 05-25-2006 08:23 AM
 
Okay, here's a good one. My horn only works if I have the clutch pressed in. Bad safety switch? Does a '67 even have a safety switch?
I just recently wired up an electric fan and got my switched 12V power from the wiring bundle in the steering column. It maybe be completely unrelated, but could something have happened there to cause the problem? I'm obviously a novice with the wiring, so any insight would be appreciated! Thanks!------------------
Wade
'67 A-code Fastback "Well-weathered leather
Hot metal and oil
The scented country air
Sunlight on chrome
The blur of the landscape
Every nerve aware"
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Scott H
Gearhead Posts: 1480
From: Chicago area
Registered: Mar 2005
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posted 05-25-2006 08:44 AM
That's an interesting one!My first advice would have been if you had taken it to a shop and this was the result, don't let that shop work on it again  There is no safety switch on the early manual trans mustangs, only on the automatics. The only electrical that is somehow connected to the clutch pedal would be your brake light switch, and its not really mounted on the clutch pedal its on the brake pedal. But since both clutch and brake are attached on the same support I suppose a worn out pedal support could cause enough movement to activate the switch. The reason I mention it is because the multi-function switch at the top of the steering column carries wires to activate the 4-way flashers, the horn, the brake lights, and the turn signals. You may have crossed, pinched, or pulled one of those wires when you tapped in for your fan. The other possibility is a loose wire that is becoming tangled in your clutch pedal area, so that when you press the clutch you are moving or pinching that wire. Good luck with this one and let us know how it comes out! Might be useful info to someone else here in the future. [This message has been edited by Scott H (edited 05-25-2006).]
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wadeb3
Gearhead Posts: 168
From: Winston-Salem, NC
Registered: Jul 2004
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posted 05-25-2006 08:52 AM
Nah, this one's all on me and my buddy, hehe...
Those are all good ideas, Scott. Thanks, man. I'll crawl back under there and check it out. Hopefully something will jump out at me.
Thanks again, Scott!
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Wade
'67 A-code Fastback "Well-weathered leather
Hot metal and oil
The scented country air
Sunlight on chrome
The blur of the landscape
Every nerve aware"
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Scott H
Gearhead Posts: 1480
From: Chicago area
Registered: Mar 2005
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posted 05-25-2006 09:04 AM
quote:
Originally posted by wadeb3:
Nah, this one's all on me and my buddy, hehe...
Like I said, if that guy(s) worked on my car.... Sometimes the most damage done to my car is the damage I do myself!!! But that's half the fun of having an old car. [This message has been edited by Scott H (edited 05-25-2006).] [This message has been edited by Scott H (edited 05-25-2006).]
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wadeb3
Gearhead Posts: 168
From: Winston-Salem, NC
Registered: Jul 2004
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posted 05-25-2006 09:09 AM
Learn the hard way. Usually after three tries. That should be my motto...
But, yeah, even then it's still fun.
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Wade
'67 A-code Fastback "Well-weathered leather
Hot metal and oil
The scented country air
Sunlight on chrome
The blur of the landscape
Every nerve aware"
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mustangs68
Moderator Posts: 27681
From: Hampton Va MCA#39406 M&M #12 Member Mustang Club of Tidewater
Registered: May 99
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posted 05-25-2006 07:37 PM
The only electrical that is somehow connected to the clutch pedal would be your brake light switchHow about the Backup lights,isn't there a switch mounted on the tranny so when you engage Reverse the backup lights come on.
Sam
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sigtauenus
Gearhead Posts: 3969
From: Va Beach
Registered: Jun 2000
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posted 05-25-2006 08:51 PM
Sam, that would only apply if you happened to be shifting into reverse with the clutch depressed. From what he is describing, the backup light switch would not be involved since it is physically located on the shifter.
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