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'71 Mach 1 turn signal problem
#1
Afternoon ya'll. I got a '71 Mach 1 with some turn signal issues. At first it was just a new flasher so I replaced them and they were good. Now my turn signals ain't working. I tried a different flasher thinking that was the issue but it did not address the problem. I replaced the turn signal switch for a new one and it still doesn't work. Checked my fuses and they are all fine. I checked my bulbs and none are burnt either. My hazards work fine and the turn signal lights on the inside of the car work when hazards are on. They flash on the outside as well but individual turn signals ain't working. Anyone got a similar problem that they have fixed?

If you ain't learning, you ain't living. 
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#2
Had same problem. Got a new flasher. Worked for two days and out again. Got another flasher and haven’t had a problem since. You might have just got a bad flasher.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
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#3
(06-13-2018, 10:01 PM)73pony Wrote: Had same problem. Got a new flasher. Worked for two days and out again. Got another flasher and haven’t had a problem since. You might have just got a bad flasher.

I have tried two working flashers and also tried an electronic flasher. None of them got the turn signals to work.

If you ain't learning, you ain't living. 
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#4
I was going to mention that the second one I got was an electronic one but i see you tried that already. When you checked the fuses did you use an ohm meter? We’re any of the sockets covered with coorosion?

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
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#5
(06-13-2018, 10:12 PM)73pony Wrote: I was going to mention that the second one I got was an electronic one but i see you tried that already. When you checked the fuses did you use an ohm meter? We’re any of the sockets covered with coorosion?

I have not checked them with an ohm meter. Do I just put one clamp on one side and one on the other with the ignition on? The fuse box seems to be in pretty good condition. There is no corrosion on any of the contacts.

If you ain't learning, you ain't living. 
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#6
Perhaps check you're getting power to the flasher, check for 12 volts at the white/purple wire on the flasher unit which comes from the fuse box, if nothing then it could be the fuse or a broken wire/dirty connection
If good then try for 12 volt on the light blue wire on the flasher unit when turn signal on, if nothing then it could be anything from the wire to the connections up to the switch
Seeing as you have replaced a few things it sounds more like a connection/wiring problem which would be best chased by a test light or multimeter
Good luck and perhaps Midlife will give you better ideas
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#7
Hi,

If you can remove your steering wheel, I would suggest checking the plastic "cam" piece that actuates the flasher contact when you pull up or down on the turn signal lever.

I had replaced mine but forgot to properly orient the springs and it caused intermittent contact when the individual flashers were activated.

It is secured to the inside hub of the steering column with a rivet. Be careful when trying to pry it loose as it may break off the stem and cause you further problems.


Hope you can figure out your problem!

Marco
[Image: maxresdefault.jpg]

Marco

"When the world is running down you make the best of what's still around."- Sting and The Police

[Image: IMG_5305.jpg]


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#8
(06-13-2018, 10:20 PM)OzCoupe72 Wrote: Perhaps check you're getting power to the flasher, check for 12 volts at the white/purple wire on the flasher unit which comes from the fuse box, if nothing then it could be the fuse or a broken wire/dirty connection
If good then try for 12 volt on the light blue wire on the flasher unit when turn signal on, if nothing then it could be anything from the wire to the connections up to the switch
Seeing as you have replaced a few things it sounds more like a connection/wiring problem which would be best chased by a test light or multimeter
Good luck and perhaps Midlife will give you better ideas

I'll give that a shot tomorrow and see what it's doing .

If you ain't learning, you ain't living. 
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#9
Do you have the correct bulbs?
Single vs double element.
Dont assune what was in there is correct.
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#10
(06-14-2018, 09:30 AM)Tucaz520 Wrote: Do you have the correct bulbs?
Single vs double element.  
Dont assune what was in there is correct.

I put the correct bulbs when I got the car. At first it was just a bad flasher. I replaced it and it got my turn signals working. Now thats the only thing that doesn't work. Hazards work but not individual turn signals .

If you ain't learning, you ain't living. 
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