'77 horn issue
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Joined: Jun 2010
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'77 horn issue
'77 Horn Issue!!
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A coupla days ago, sitting in front of my house, my '77's horn started blasting non-stop for no reason. After five minutes of this, i realized it was my vehicle making all the racket, panicked and ran out wondering why and what i could do to stop it. Try as i may (including looking, to no avail, in the manual for the fuse location) i could not stop it. Irate neighbors looking on, i finally pulled the wire off the ramaining blasting horn (the left side horn having stopped. i presumed it had burned out as i could smell burning wire) and the blasting stopped!!! I now have no horn.
Can anyone tell me why this happened and what i can do now to restore horn use? Thanks, D.
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A coupla days ago, sitting in front of my house, my '77's horn started blasting non-stop for no reason. After five minutes of this, i realized it was my vehicle making all the racket, panicked and ran out wondering why and what i could do to stop it. Try as i may (including looking, to no avail, in the manual for the fuse location) i could not stop it. Irate neighbors looking on, i finally pulled the wire off the ramaining blasting horn (the left side horn having stopped. i presumed it had burned out as i could smell burning wire) and the blasting stopped!!! I now have no horn.
Can anyone tell me why this happened and what i can do now to restore horn use? Thanks, D.
Drifting
Joined: May 2006
Posts: 1,480
Likes: 2
From: Circleville Ohio
Vader Vette
My 77 had an alarm but it never worked something just setting wont make A connection for the horn to blow but A wire shorting out on say A Header Or just got taped up bad. not sure I think the alarm horn is under the driver side rear fender.I dont think the two circuts are hooked together I would trace down the horn wires backwards and look for A bad Short.
Check the bottom of the steering wheel (wire harness)for any bad wires coming out of the steering wheel shaft area.
Check the bottom of the steering wheel (wire harness)for any bad wires coming out of the steering wheel shaft area.
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Joined: Jun 2010
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Horn Issue
Hey Vader Vette,
Thanks for the reply/info. My '77 (28K miles) has the same alarm (mine works) and i believe you're right - the horn and alarm are separate circuits. I was recently able to purchase an "Electrical Troubleshooting Manual" which i'm sure will help me or whoever will work on this problem. I was hoping another CF member might have encountered the same problem and could provide a quick solution. Thanks again and have a great fourth, D.
Thanks for the reply/info. My '77 (28K miles) has the same alarm (mine works) and i believe you're right - the horn and alarm are separate circuits. I was recently able to purchase an "Electrical Troubleshooting Manual" which i'm sure will help me or whoever will work on this problem. I was hoping another CF member might have encountered the same problem and could provide a quick solution. Thanks again and have a great fourth, D.
Racer
Joined: Aug 2010
Posts: 303
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From: Fresh Meadows New York
was the alarm set?... my 74 has a different horn for alarm, maybe yours uses the warning horn from the steering column... if the alarm was set i would check the plunger switches on the hood and doors... good luck...
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Joined: Jun 2010
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Thanks for the reply. This happened some time ago (two or three months ago). As luck would have it, i found a guy on Ebay who was parting out a '77 and had two horns for sale. Took a shot and bought them for around 20 bucks; had the one that had burned out installed and "voix la" problem solved!!! The problem was a plastic retainer inside the horn assembly that had become brittle, cracked and broke causing contact and the subsequent horn blasting. Thanks again and all the best to you brother 'vette owner. D.
