Need some electrical help with my ‘68 Plymouth Valiant 100

snailgarden said

Got it, I will try that out and see what happens.

Sorry to go back and forth, but got the three fuse head connectors that go into the fire way cleaned and used diaelectric grease on them and unfortunatley, the flickering is still happening. I had shard a photo of the fuse box earlier in this thread and you had reposted it with arrows. Is that red arrow pointing to the fusible link? It’s a black wire and red wire with a connection in between them next to the fuse heads.

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That thing is called a bulkhead connector. Your fuse box is under the dash on the driver side. The bulkhead just allows wires to pass through the firewall to the interior. Congrats on getting the bulkhead connectors off without breaking them. No small feat on an old car.

I'd tackle your other problems while you wait for your alternator to come in. The fact that it failed its test at the parts store is pretty telling. Probably not worth the energy to pour through all the other troubleshooting steps if you already know the alternator is bad. Unless you're just looking to learn...which is always a good thing.