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Old 06-29-2026, 09:49 AM
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Bill Hanlon Bill Hanlon is online now
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He said the brake lamps are working.

Same ground for the rear turn signal/brake lamps.

Same power from turn signal switch to rear turn signal/brake lamps.

Problem is from the turn signal switch to the turn signal fuse, including wiring there and the flasher.

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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic.

Last edited by Bill Hanlon; 06-29-2026 at 10:42 AM.
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Old 06-29-2026, 07:10 PM
SRGN SRGN is offline
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Quote:
Originally Posted by Bill Hanlon View Post
He said the brake lamps are working.

Same ground for the rear turn signal/brake lamps.

Same power from turn signal switch to rear turn signal/brake lamps.

Problem is from the turn signal switch to the turn signal fuse, including wiring there and the flasher.
I'm wondering if the brake lights are grounding through another circuit because he says that the tail lights are illuminated at all times. Need to know if the brake light will turn off on either side if the turn signal switch is activated for that side.

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Old 06-29-2026, 07:37 PM
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Originally Posted by SRGN View Post
I'm wondering if the brake lights are grounding through another circuit because he says that the tail lights are illuminated at all times. Need to know if the brake light will turn off on either side if the turn signal switch is activated for that side.
Good question.

Another question is "What is Illuminated at all times" mean?

Do the tail lights remain on with the key in your pocket or are the tail lights on when the key is on?

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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic.
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Old 06-29-2026, 10:39 PM
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slowbird slowbird is offline
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Originally Posted by Bill Hanlon View Post
Good question.

Another question is "What is Illuminated at all times" mean?

Do the tail lights remain on with the key in your pocket or are the tail lights on when the key is on?
More troubleshooting will have to wait for a bit as the car is at the chassis shop again.
But this is a race car so as soon as the main power switch to the car is turned on the tail lights come.
As far as I know the brakes and tail lights function as stated no matter if the turn signal is activated or not but I will verify that just to be sure once I get it back. I'll also locate that fuse and check it (I wasn't aware of that fire before)

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