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post #1 of 4 (permalink) Old 11-08-2017, 06:29 PM Thread Starter
 
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Horns

Well I just discovered that neither the horns on my 67 GTO work. I refused to believe this until I painstaking removed both of them and then tested them by running a 12v wire to the horn terminal and touching the horn bracket to the neg. side of the battery. Nothing from either one of them. So if anybody has any horns for a 67 GTO please let me know. I am willing to pay for them. The only thing is they need to be working.

thanks
alan

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post #2 of 4 (permalink) Old 11-08-2017, 08:12 PM
 
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There should be an adjusting screw used to change the tone of the horn. It should be near the bracket as I recall, but if not look for it. I have in the past played around with this adjusting screw and got a horn working again. Try screwing it in/out and test it with your 12 volts. The guts might just be stuck. If you are going to replace them, I'd also drop it on the ground a few times as that may also jar the guts loose.

There is a video on YouTube pulling a GM horn apart and looking inside. The guy gets it going again, but never puts it back together. Might be another option to disassemble it, clean it up, and then reassemble - if you destroy it, you were going to replace it anyway.
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post #3 of 4 (permalink) Old 11-09-2017, 07:07 PM Thread Starter
 
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Thanks for your advise. Scott gave me the same advice yesterday. I tried it and it worked. Both my horns now work. Thanks for all the help. Scott and PontiacJim.

Alan
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post #4 of 4 (permalink) Old 11-09-2017, 07:39 PM
 
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a/c heater wiring

http://www.wallaceracing.com/68wir6.jpg

hope this helps

Wallace Racing - Wiring Diagrams

Scott

SWEET glad you got em honkin'
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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