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09-24-2002, 04:28 PM
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#1 |
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Like a Rock!
Join Date: May 2002
Location: USA
Posts: 1,092
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Horn Relay
My horn never has worked. Is the relay the little square block that is screwed to the drivers side of the core support?. I figured it's cheap and might be the problem.
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69 LWB Runs great - work in progress Mess with me and you mess with the whole trailer park! 
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09-24-2002, 05:33 PM
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#2 |
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1969 Custom 30 wrecker
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
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Yep, that's it. If it's working, you should hear it click when you push the horn button. If you can't hear anything, either there is no power getting to it or it's bad. Test it for power.
If it is clicking, your horns are probably bad. Test wires for power at the horns.
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Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10 |
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09-24-2002, 06:22 PM
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#3 |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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Isn't the horn relay an aluminum cased relay bolted to the inside fire wall around the steering column? Just above and to the left of the column? The only thing I remember being on the core support is the voltage regulator and the horns themselves.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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09-24-2002, 08:23 PM
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#4 |
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Half a bubble off!
Join Date: Jun 2000
Location: Winfield, Ks, USA
Posts: 5,588
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My horn relay is on the inside of the firewall, at the base of the steering column. O.T., but related, one of my horns quit working, is there something in there that goes bad? Never messed with a horn in my life, so I don't even know how they work.
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Just call me LB.  '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads. |
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09-25-2002, 08:38 AM
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#5 |
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1969 Custom 30 wrecker
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
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Oops! I think you guys are right. Im picturing one of my Chevelles.
 That's what I get for owning 6 oldies!Well, in any case, where ever it is, see if it clicks... 
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Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10 |
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09-25-2002, 09:00 AM
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#6 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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I have never seen a horn relay go bad in these trucks. Usually it is the horns. Sometimes you can make them work by smacking them with a rubber hammer with power to them. I have also made them work by adjusting them. The adjustment screw is very small and it has a different head on it. Anyway it adjusts the points inside the horn. The points seem to stop making contact because of not being used. Just turning the screw back and forth will usually get the horn to working again. You want to have power to the horn when adjusting.
Jim |
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09-25-2002, 09:28 AM
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#7 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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My horn relay was bad when I got the truck.
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Tim |
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