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Post Info TOPIC: Left Turn Signal?


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Left Turn Signal?


Left turn signal not working, turns on hazards on front markers when headlights on? WTF could this be in the rear tail harness? or are turn signals front attached or both? brake lights, tail lights and right flasher good so not sure as yet.



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A Poncho Legend!

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I would start with checking grounds and replacing bulbs. Simple to do and cheap. It sure sounds like a ground issue?

 



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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All bulbs are new LED ,everything works perfectly except the left turn. this car was worked on by some clowns in Kamloops before I got it so I suspect front wire harness, not sure they ever worked correctly  as car has been stored and only driven around a bit , don't think I ever actually used the turn signals as I was up North in the boonies.



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Ah ok, I was assuming this problem just cropped up.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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What do you mean hazards on front markers?

This year of cars from factory had headlights and combination parking lamps/signal lamps. No hazard lights (4 way flashers?). With the headlights on, the parking lights do not stay on like later cars. 4 way flashers came as an option but I have no idea when that option became available. Some people have added a 4 way non factory flasher system using I assume something made in China.

Is what you have factory original without factory optional 4 way flashers? Follow the wiring diagram and see where you have power in the circuit to the bulb not working?

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic



Canadian Poncho Superstar!

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Yes, please indicate what year car you're working on. Hazard lights were optional in 1965, not sure about 1966, and were standard equipment in 1967.



-- Edited by seventy2plus2 on Thursday 25th of August 2022 03:18:11 PM

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yes that's the really weird part as it has no hazard light switch, but when you go from park lights to headlights front markers blink hazard?, when left turn signal on , otherwise all is good? This is on my 65 SD, both front park lights blink just as if hazard switch was on?



-- Edited by cooldude on Thursday 25th of August 2022 04:11:44 PM



-- Edited by cooldude on Thursday 25th of August 2022 04:13:47 PM

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Canadian Poncho Superstar!

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ok, just so we're all clear on your problem:
Car is 1965 Beaumont SD,
Car has no hazard light feature,
Park lights are ok,
Headlights are ok,
but when left turn signal is chosen, both front park lights flash, just as though hazard lights are engaged.

Not sure about your comment "but when you go from park lights to headlights front markers blink hazard? when left turn signal on,"

Does that mean this only happens when the left turn signal is on? Or does it mean the fronts both flash when you switch from park lights to headlights (regardless of left turn signal)?



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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



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So park lights are on ,when you switch to headlights park lights turn off this is normal, park lights on all good ,right turn works as it should blinks both back and front, now turn on left signal , nothing all park lights on still, now leave on left signal and pull for headlights , headlights come on ,both front park lights flash as if hazards were on?



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Canadian Poncho Superstar!

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I suspect something screwy with your turn signal switch.

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



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I think it's a wrong wire because I believe there is a wire for hazards coming from the same plug?It's pushing me towards this -

 

https://www.ezwiring.com/product-page/ez-wiring-12-standard-wiring-harness



-- Edited by cooldude on Thursday 25th of August 2022 07:07:23 PM

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Poncho Master!

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Check the bulbs in the parking lights. I have seen the filaments in the bulb get damaged and touch together causing both lights to flash.

Paul

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They are all LED and are new, seem fine.but thanks I'm up for all suggestions as this is a weird one?



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Canadian Poncho Superstar!

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cooldude wrote:

I think it's a wrong wire because I believe there is a wire for hazards coming from the same plug?It's pushing me towards this -

 

https://www.ezwiring.com/product-page/ez-wiring-12-standard-wiring-harness



-- Edited by cooldude on Thursday 25th of August 2022 07:07:23 PM


Not sure what you mean by "I think it's a wrong wire because I believe there is a wire for hazards from the same plug?" 

Do yourself a favor and take a close look at your signal switch before resorting to an aftermarket harness (which is going to use the same signal switch).



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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



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So when you Google this is says flasher relay, could be possible as this one is for LED, will check it tomorrow, this plugs into the fuse block, that would make sense I guess?



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Canadian Poncho Superstar!

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Do you have a stock harness now or something like a Painless harness?

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic



Poncho Master!

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As I reread your post I still think that you have a short between the turn signal wire and the parking light wire in your left parking light. If the contacts are worn in the socket the wires may be touching together. I bought new sockets for my car (made in China) and the sockets were such poor quality the contacts in the socket would touch together when I installed the bulbs. I had to actually pull the wires back against the spring and then install the bulb. That way after the bulb was in I could release the wires and they wouldnt be twisted. I also bought a box of 6 volt bulbs from Amazon a while ago, also China, and the contacts on one bulb were incorrectly positioned.

Paul

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If it was me, I would swap the led bulbs for standard 1157A bulbs and see what happens. I tried to install led bulbs in the same year Beaumont and had a hell of a time trying to get them to go in. Never could get them installed properly. Took them back for a refund...China!

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offroadtoad wrote:

If it was me, I would swap the led bulbs for standard 1157A bulbs and see what happens. I tried to install led bulbs in the same year Beaumont and had a hell of a time trying to get them to go in. Never could get them installed properly. Took them back for a refund...China!


 Agreed.

I had a similar problem and found that the pigtail in my turn signal socket twisted when the bulb was installed. DC grounding issues can cause some strange things to happen. Took a bit to figure it out and resolved it with a simple fix.

Installing LEDs in an older vehicle can cause trouble too due to near zero current draw.



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72 Nova SS,   66 Beaumont Sport Deluxe,   09 Pontiac Solstice GXP Coupe



Addicted!

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This is the stock harness and LED;s installed and work great except for this left turn issue, again whom ever worked on this car before me was somewhat of a moron but I have fixed all the moron issues, all bulbs are LED accept the dash lights which I will do next, possibly the mix of led and regular has messed up the blinker relay ,not sure yet ,bad weather approaching so it will have to wait a day or so, could also be bad wiring by clowns in Kamloops so will look in the book and see what is correct,thanks for the replys gentlemen.



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Addicted!

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Also says this on Google and it now does appear to be the flasher relay causing this issue-

 

Will LED flasher relay work with regular bulbs?
 
 
Compatibility: All LED flashers from CEC, including the Solid State flashers, are compatible for use with regular bulbs as well as LED bulbs or a mix of LED / regular bulbs. There are many cheap LED flashers on the market that will simply go up in smoke when you put regular bulbs in.

 



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Canadian Poncho Superstar!

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How did you ever make out with this? Myself I don't think it'd be the flasher, as it seems to work properly when signalling Right.

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



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seventy2plus2 wrote:

How did you ever make out with this? Myself I don't think it'd be the flasher, as it seems to work properly when signalling Right.


 AGREED



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Addicted!

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Definitely is the relay so I will order this one as it works with bulbs and LED

 https://www.amazon.com/gp/product/B00K00RKGM/ref=ewc_pr_img_1?smid=A38EGQBMP3KNQV&psc=1



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