Turn signal canceling cam - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #1 of 5 (permalink) Old 04-21-2011, 05:41 PM Thread Starter
Join Date: Jun 2003
Location: Spanaway, WA
Posts: 21,280
Turn signal canceling cam

Although this isn't my car, i do have the same issue as far as the signal switch not turning off after i turn. Was working til the last time i had the wheel off. But a friend got a new switch and canceling cam thing and it still does not turn the switch off. What is it that actually hits that cam to turn them off, is it on the underside of the steering wheel?
Also, another issue is brake lights. New brake light switch, power at the fuse box, not power from the firewall to the switch and the plug in the firewall has been cleaned. Hoping the new turn signal switch will fix that issue also but I'm not to sure. He hasn't cleaned the light sockets yet either. If the switch doesn't fix the brake light issue then where's the next location? Broken wire or ground? I already gave him all the ideas that fixed mine which is mentioned above, firewall plug, fuse prongs cleaned and light sockets.

1964 Galaxie 500XL convertible, 390 .030 over, Fedmogul rv pro-3000 cam

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post #2 of 5 (permalink) Old 04-21-2011, 06:09 PM
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Location: PA
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Re: Turn signal canceling cam

Shotrod, As for the turn signals. There are two half round extensions on the bottom side of the steering wheel that cancel the switch.
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post #3 of 5 (permalink) Old 04-22-2011, 02:54 PM
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Location: La Mesa CA
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Re: Turn signal canceling cam

In my personal experience, if the stick on your column is slightly loose, causing the stick to hang down a little, it can cause your brake light to not come on. I own a 70 galaxie 500 and the rear turn signal light IS the brake light. I belive this is common among most Galaxies.
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post #4 of 5 (permalink) Old 04-22-2011, 04:39 PM Thread Starter
Join Date: Jun 2003
Location: Spanaway, WA
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Re: Turn signal canceling cam

Thanks and not sure if his turn signal handle is loose or not. Mine isn't but i also don't have my wheel on totally straight. Not sure if that effects it or not unless only one direction but also i don't have a new canceling cam and need to pick one up sometime. I'll ask him about that.

Boyd, yep the signal and brake are at least the same element of the bulbs back there as is the front lights. Will see if once he has the switch totally in there and all if that doesn't fix the problem as it seems the brake lights somehow loop/pass through the ts switch...i think.
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post #5 of 5 (permalink) Old 04-26-2011, 08:47 AM Thread Starter
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Re: Turn signal canceling cam

After installing the new turn signal switch from Dennis Carpenter which is new to their inventory, the lights still did not work. He then hooked up the old switch without installing it and everything worked for whatever reason, that part is a mystery unless some contacts got cleaned off. He then did the same with the new switch and it also worked. Discovered that as long as the new switch wasn't screwed down it worked. The plastic is thinner and more flexible than the original switch and tightening the screws down, not even tight, just snug it causes the plastic to flex and somehow causes a lack of connection within the switch. He also discovered that when the canceling cam was added it didn't allow the arm of the switch to go all the way into position to turn the turn signal on. In the end he reinstalled the old switch that started working again and just turn the signals off by hand. He is going to contact Dennis Carpenter about it since it is a new item and let him know what happened and maybe others might have the same issue. Either that or he got a bad one, hard to say really. But he is back in business with working lights again.
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