yep
1969 electrical failure
Le Mans Master
Joined: Aug 2006
Posts: 7,426
Likes: 1,559
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
You could have blown a "Fuseable" link. There is one at the starter, two at the horn relay and one for the ammeter. They burn and open inside the insulation so you have to pull them from each end to see if they a good or not, or use a meter and check for continuity at each end. PG.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Second vote for fuseable link by the starter motor. Check voltage from horn relay terminal to engine block if there isn't any there you have a fuse link problem down by the starter motor (one of the horn relay terminals is powered up all the time, easy to check.)
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
The fusible link as already mentioned is a prime cause for the problem...also bad battery connections or ground.
One less common problem could be the ammeter. Everything or nearly everything goes through that. If the gauge is bad it could cause the problem. Not a likely cause, but still a potential cause.
One less common problem could be the ammeter. Everything or nearly everything goes through that. If the gauge is bad it could cause the problem. Not a likely cause, but still a potential cause.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Correction... Very little current flows through the ammeter. Sorry to differ. That device is really a millivolt meter which 'measures' current flow through one of the major 12 volt supply wires. The "ammeter" really measures the voltage drop across a specific length of that supply wire, but the dial face is scaled in to read in "amps". [it's probably the most misunderstood component in the C3 Corvette...]
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