Everything you wanted to know about '67 Sequential Signals

If it's mechanical, electrical or just downright confusing, this is the place to find and share answers.
Wallgeye
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Joined: 23 May 2016, 17:34

Re: Everything you wanted to know about '67 Sequential Signals

#61

Post by Wallgeye »

Looking for some guidance. 67 Std Cougar, non-tilt wheel. I found the dash harness was butchered up a bit after buying this car. Also, the TS indicator lights on the dash were on whenever the key was on. No blinking. But outside lights all work properly. The yellow wire was jumped across the TS connector. Bought a replacement harness and switch from WCCC and removed harness. Discovered the plate for the relays was missing from under the dash and the relays were floating in space not grounded. Bought plate from WCCC and new relays from Vic's. Ended up replacing harness to the front of the car and a few other smaller ones. LED bulbs put in dash cluster. Everything lit up when bench tested.

On finishing install and testing the indicator lights are now off, but don't blink either. All outside lights still work. Any ideas where to start? Thanks!
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JamesBurch
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Location: Plymouth, UK
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Re: Everything you wanted to know about '67 Sequential Signals

#62

Post by JamesBurch »

Hello all,

Having trouble with my sequencing tail lights in my ‘68. Car still retains the original motor operated sequencing unit from the factory...
The tail lights all work with brake lights and headlights working fine. The turning signals seem to work fine too however the outer lights on each side either don’t light up at all if the cars head lights are off or just stay on if the headlights are on...
I know there has probably been on a post on this very problem before (these old sequencing units seem to be troublesome part of the T birds/cougars :roll: ) but darned if can find it
Any help much appreciated, thanks

—James .
1968 J code - United Kingdom -
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coachJack
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Joined: 30 Aug 2013, 17:14
Location: SF Bay Area

Re: Everything you wanted to know about '67 Sequential Signals

#63

Post by coachJack »

James,

The outer tailights for both the left and right sides are powered via the sequential motor. The output of the sequential motor is then fed to the K10 relay where it is switched depending if the hazards are off/on. The output then feeds the K8/K9 relay which switches the output to the left or right side.

Allthough yourcougar is a 68, it is very similar to my 67. You can download my pdf file from the following link https://classiccougarcommunity.com/wp-c ... _Guide.pdf

Let me know if you need any additional help.

Coach Jack
robert campbell
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Joined: 07 Aug 2018, 16:53

Re: Everything you wanted to know about '67 Sequential Signals

#64

Post by robert campbell »

Coach Jack,
I am working on a 68 Cougar GTE with the replacement sequencing system in the back. When I got the car, I think that the blinkers were working, but did not test them or the flashers. This is what I know at this time. Did an engine and tranny rebuild, brake work, and had the voltage regulator off as well as the starter solenoid. Lots of detail work under the hood. All put back normal and all works fine as well as the charging system. New alternator. Fuse panel a bit dirty, but fuses are intact and good.

There are no emergency flashers or blinkers or dash light indicators. It is a tilt wheel car.

Brake lights, tail lights, and park lights work fine.

The turn signal switch looked original and had a return cam broken off. So I replaced it. Still no blinkers.

Pulled the instrument bezel to get to the 15 amp fuse for the blinker power on the orange wire with yellow tracer. Fuse fine and has power on the ignition side.

Reassembled the fuse holder and tested for power at the turn signal connector. Had power on the orange/yellow wire.

Re-plugged the turn signal switch connector and went to the turn signal switch. Has power on the blue wire on both the flasher switch and the turn signal switch.

Stopped at this point and wondering where to go from here.

Rob
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coachJack
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Location: SF Bay Area

Re: Everything you wanted to know about '67 Sequential Signals

#65

Post by coachJack »

Rob,

Check for voltage on the output of the turn signal switch circuit 458 Orange-Black wire. If you have power here check the K7 relay as circuit 458 provides the input power. Next, test the output of the K7 relay circuit 459 Orange-Green. Circuit 459 then provides the input power to the sequencer.

Hope this helps

Coach Jack
robert campbell
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Joined: 07 Aug 2018, 16:53

Re: Everything you wanted to know about '67 Sequential Signals

#66

Post by robert campbell »

Coach,
Will I need to use a "wire prick" to test the output on the turn signal switch or is there a terminal? the other two are terminals. Which one is the K7? Is it attached to the plate next to the fuse panel?

Rob
robert campbell
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Joined: 07 Aug 2018, 16:53

Re: Everything you wanted to know about '67 Sequential Signals

#67

Post by robert campbell »

Coach Jack,
Gosh if you go under the dash and plug the connector onto the K7 relay...…… Everything lights right off!!! I replaced the cable to the drivers side vent and installed a new master/PB assembly. Must have knocked it lose squirming under the dash installing these items!! I hate work under the dash. Even with the front seat out!! Thanks for your help, and all the useful information you have compiled. Need a carb rebuild?? I am your man!!!

Rob
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coachJack
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Location: SF Bay Area

Re: Everything you wanted to know about '67 Sequential Signals

#68

Post by coachJack »

Glad to hear you were able to resolve your issue. Enjoy the ride!!!

Coach Jack
robert campbell
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Joined: 07 Aug 2018, 16:53

Re: Everything you wanted to know about '67 Sequential Signals

#69

Post by robert campbell »

This is what happens when a Mustang guy works on a Cougar...… They know know squat about sequential blinkers!!!
gregar
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Joined: 09 Sep 2019, 14:05

Re: Everything you wanted to know about '67 Sequential Signals

#70

Post by gregar »

ssava wrote: 01 Mar 2018, 06:06
For an example of the relays in the 67... see the video above. I move to the inside after a few seconds so you can see the relays.

EDIT:
Or since this is on a new page... here you go.
Thanks for the video, do you have a video of the front as well ?
I tried them for the first time on my cougar this weekend, and whilst i'm amazed that they seem to work, they looked pretty slow (at least slower than in your video) and the front blinking is also very slow.

EDIT :
Is there also a reference of how the whole system *should* behave (for a 67) ? i.e. :
Turn left = front:flashes x time per 10 second ; rear:sequential repeating x time per 10 second ; dash : flashes
(on mine it seems the dash indicator shows 3 levels of intensity ?)
Hazards on = front:? ; rear:middle light flashes x times per 10 second ; dash:?
Brake = ?
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