Another strange turn signal issue

[73pony]

So my blinkers work fine for a while then they quit and just come on solid no blinking after a couple of turns. If I turn on the flashers and turn them off the blinkers start working again. Any ideas?

 

[72HCODE]

defective turn signal flasher above glove box.

best guess the bimetal switch inside after cycling a couple of times getting hot is getting stuck closing the circuit and the lights stay on.

you turn off the blinkers and turn on the hazard and the flasher cools off, then you go back from the flashers to turn signal and it gets stuck again after cycling.

 

[73pony]

Is this the one?

 

[John J]

It looks like this. http://www.cjponyparts.com/turn-signal-emergency-flasher-1965-1973/p/TSF/

John J

 

[secluff]

Original turn signal flasher is industry number 323. The emergency flasher (#552) which was designed to flash tail and park/turn signal lamps all simultaneously is a better and stronger flasher. I've used it in place of my standard flashers and have never had a problem. I know its getting harder to do, but try to find a name brand American manufactured unit.

 

[73pony]

Update. So there was a #536 thermal flasher installed. It would quit after so long until you waited and tried again. Did some research and ended up with a Novita EL12 electro mechanical flasher. Made is USA and recommended by the counter guy at two parts stores and a tech at the local ford dealer. Installed and works great. They don't stop working and done blink really fast either.

 

[72HCODE]

glad you fix it.

i went though a couple of turn signal flashers, some were VERY loud in clicking and they flashed at different rates took a while but i found an old Bi-metel mechanical flasher that didn't have loud clicking or drove me insane at night when it was quiet inside the car.

 

[Rmach1]

Can anyone tell me if there are two flashers or one for turn signals and one for emergency?

 

[Don C]

Two, one for turn signals, one for emergency flashers.

 

[Bill73Ragtop]

Two, one for turn signals, one for emergency flashers.

Something to keep in mind when replacing front and rear turn signal lamps with LED's.  You need two LED flashers.

 

[Rmach1]

Can anyone tell me if there are two flashers or one for turn signals and one for emergency?

Thanks all!!

I have another issue.. no brake lights but when I use turn signal, two bulbs on each side come on in the tail lights. My first Mach 1 so I’m not sure how many lights should blink when turn signal is flashing. I thought just the outside one and inside is the brake.. can someone help with what light come on and when? Thanks all!!!

 

[midlife]

Both lights on each side should have running lights and brake lights/turn signals on. The third bulb is backup lights. You probably have a bad grounding issue back there, quite common on 7123's. Bad grounds at contacts with bulb sockets at the spade leads and corroded sockets.

 

[Rmach1]

Two, one for turn signals, one for emergency flashers.

Something to keep in mind when replacing front and rear turn signal lamps with LED's.  You need two LED flashers.

Ahh, had no idea.. thanks!!

 

[Fabrice]

@Rmach1

There are few types out there. Some with 3 or more connections.

These are plug&play. They fit our connectors with zero change.

https://www.ebay.com/itm/12V-Electronic-Turn-Signal-Flasher-Relay-LED-2-Prong-Round-Style/192092794862?hash=item2cb99f6fee:g:ikgAAOSw-0xYkQzI

 

[Stanglover]

From my own experience only, the electronic flasher Fabrice is showing did not work with the better quality LED or SMD bulbs I bought from HiPo Parts. I required 2 LED flashers, one for turn, one for hazard, that are polarity sensitive and GROUNDED. In my case I needed to switch the wires in the connector in the  glovebox. Thank you Ford for reversing the wires!! I just made up a couple of short jumper wires to fix that issue.

Go to www.hipoparts.com and buy the good stuff.

Just my opinion,

Geoff.

 

[Fabrice]

Ordered LEDs on Ebay, 5 dollars the dozen for the exact same ones I see on this site (they all come from China anyway). Ordered also in different quality/fittings for the inside, in amber and white for markers and reds in 2 fittings for the the turn lights/tail. The 2 flashers out, new in. Done.

I will not argue if they are crap or excellent for each types I have till I have drived the car for a long time. So far each time I use a switch they do and look fine. May they fail, just like I did with the incandescent ones, i'll replace. Since there is no heat I could feel, I suppose it's gonna take a significant amount of lighting hours before they fail.

The original Ford fitting is on both my cars 2 fittings for the flashers and both are fused lines.

Again, old out, new in, done. For once, no extra work, liked that!

EDIT:

They offer the same one, in case you do not have 100% LED or have blinking issues. As I still have the incandescent bulbs for the turn lights in dashboard. Fits my needs.

https://www.hipoparts.com/12v-heavy-duty-electronic-signal-flasher-relay

Is this the one you refer to with the additional ground wire? Sounds like its indeed more suitable if you are 100% LED

https://www.hipoparts.com/12v-electronic-signal-flasher-relay-w-ground-wire-for-led/

Good to know if I ever update the dashboards ones.