Flasher Won't Stop Blinking Sound

[Gene M.]

This is a strange one 67 standard column the directional lights and stop lights work just fine. But the minute ya turn on the ignition the directional flasher starts flashing. The weird thing the lever is centered and none of the directional lights flash. Directionals work normal both left and right. The dash indicators are working correctly too. The 4 ways are working normal. Just started problem after making a turn. My short term fix for the short drive home was pull off flasher. I tried different flashers and same results, it continues to flash. Flasher is correct #'s, yellow plastic type. I suspect the cam or shorted out wire in the steering column. Any ideas what's going on?

[Edward J.]

Re: Flasher Won't Stop Blinking Sound

Gene, I would unplug the switch under column to start. this may lead you to the switch as your likely correct. maybe even wiggle the wires going up the column to see if this stops or make some sort of change.

[Timothy B.]

Re: Flasher Won't Stop Blinking Sound

Gene,

You have got to look at the directional signal switch first, that's where I think the problem lies.

[Dan D.]

Re: Flasher Won't Stop Blinking Sound

Gene, the key here is you say it started after making a turn. That would imply the problem is in the switch or steering column. But what I don't understand is that in order for the flasher to flash, it has to have a load on it, and nearly the same load as the bulbs present. But you say the lights do not flash. And they cannot flash if the switch is centered as that connects the rear lights to the brake light circuit. When the directional lever is activated, brake light power (rear only) is removed and flasher power is inserted. Let me know how you make out. I am not that far away.

-Dan-

[Gene M.]

Re: Flasher Won't Stop Blinking Sound

Gene, the key here is you say it started after making a turn. That would imply the problem is in the switch or steering column. But what I don't understand is that in order for the flasher to flash, it has to have a load on it, and nearly the same load as the bulbs present. But you say the lights do not flash. And they cannot flash if the switch is centered as that connects the rear lights to the brake light circuit. When the directional lever is activated, brake light power (rear only) is removed and flasher power is inserted. Let me know how you make out. I am not that far away.

-Dan-

Dan, thanks
I have another 67 column harness and switches intact less the 4 way knob is broken off. But was good enough for me to disassemble and make a wiring diagram of how everything connects up. The 4 way switch maintains the connection of the directional flasher (purple wire) when NOT in 4 way mode. Takes it out when in 4 way. I see the red wire to the directional switch must be getting hot when it should be open. It should only be hot when right or left turn is selected.

I need to pull off the column to see if the directional is hot when "centered". Meaning the red to purple wire is hot. I will be investigating more with my multi-meter this afternoon. As you say it needs a load, possibally pinched wire causing a short to ground? Something plastic could have melted a bit causing contacts to move around such as Jerry Fuccillo had happen to his '67. I'll post my findings.

[Donald O.]

Re: Flasher Won't Stop Blinking Sound

I have been trying without success to locate a new 67 non tele turn signal switch. Who has them in stock?

DonO

[John H.]

Re: Flasher Won't Stop Blinking Sound

I have been trying without success to locate a new 67 non tele turn signal switch. Who has them in stock?

DonO

Don -

Have you tried Lectric Limited and Shee-Mar?

[John H.]

Re: Flasher Won't Stop Blinking Sound

Dan, thanks
I have another 67 column harness and switches intact less the 4 way knob is broken off. But was good enough for me to disassemble and make a wiring diagram of how everything connects up. The 4 way switch maintains the connection of the directional flasher (purple wire) when NOT in 4 way mode. Takes it out when in 4 way. I see the red wire to the directional switch must be getting hot when it should be open. It should only be hot when right or left turn is selected.

I need to pull off the column to see if the directional is hot when "centered". Meaning the red to purple wire is hot. I will be investigating more with my multi-meter this afternoon. As you say it needs a load, possibally pinched wire causing a short to ground? Something plastic could have melted a bit causing contacts to move around such as Jerry Fuccillo had happen to his '67. I'll post my findings.

Gene -

Jerry Fuccillo created the '67-'68 non-tele turn signal switch schematic shown below a couple of years ago and posted it here - it may be helpful.


TurnSigSwitch67-8Schematic.jpg

[Gene M.]

Re: Flasher Won't Stop Blinking Sound

Gene -

Jerry Fuccillo created the '67-'68 non-tele turn signal switch schematic shown below a couple of years ago and posted it here - it may be helpful.


[ATTACH=CONFIG]47030[/ATTACH]

John,
Yes got that, thank you.
The details on the 4 way switch were not conclusive so I took one apart (broken knob) to see what connects with what. I could not figure out the connections from Jerry's sketch of the 4 way switch in the upper right corner. Everything else fell right into place. Note the red (flasher) and white wires (not color identified) feed the signal switch.

[Dan D.]

Re: Flasher Won't Stop Blinking Sound

Oh Gene,

I'm sure you will figure it out. Mechanical stuff is much easier to figure out. You can see it. Problem with electrical stuff is you can't see those nasty ole electrons running up a down wires.

-Dan-

[Gene M.]

Re: Flasher Won't Stop Blinking Sound

OK she is all fixed. Turns out the directional switch assembly which was not GM original was the culprit. As I worked the directional lever it would come and go (blinking flasher non stop with lever centered). Also wiggling the switch yield the same. I took it apart. I found nothing out of the norm. No grease build up no melted in contacts. I cant figure it out.

I replaced the whole assembly with the original I had mentioned of previously. It had a broken 4 way knob. So I switched the 4 way from the problem one in my '67 to this unit. The plunger assembly and cap fit perfectly. I soldered the 4 wires I cut to make the swap. Shrink tubed the joints. All the contacts are nice and clean. When assembled I used just a tiny dab of dielectric grease. Put things all back together and all is good, L & R signals work, stop lights work, 4 ways work. No more constant flasher blinking...........

I never determined what was wrong with the directional switch I took out of the car. Nothing looks different from the original one that works correctly.

[Edward J.]

Re: Flasher Won't Stop Blinking Sound

Gene, a lot of time its just something like a bare wire or the plastic housing is warped and something grounds to the metal housing.

[Gene M.]

Re: Flasher Won't Stop Blinking Sound

Gene, a lot of time its just something like a bare wire or the plastic housing is warped and something grounds to the metal housing.

Edward,
Sounds easy enough to find but the entire wiring harness strap looks good no breaks, cuts, nor tears. Housing looks equal in every way I can see. I feel sure something is not just right with the stiff wire contacts in the upper half of the signal switch. But nothing my naked eye can detect. All is working on the '67 and that's all I'm interested in. The original parts save the day. I can live with the switch one and me nothing......