Tricky turn signal problem

[nudenut]

Hello
i hope someone can help me
I have a '69 Charger and i'm having trouble with my lights. My turn signals work correctly on the front of the car, but on the taillights both will flash when the turn signal is engaged to right.
Im using a reproduction turn switch. I checked the earthing near the radiator all good.

Thanks in advance

 

[pnora]

Hello
i hope someone can help me
I have a '69 Charger and i'm having trouble with my lights. My turn signals work correctly on the front of the car, but on the taillights both will flash when the turn signal is engaged to right.
Im using a reproduction turn switch. I checked the earthing near the radiator all good.

Thanks in advance

Nothing wrong with the TS switch. You are getting a feedback between the turn signal circuit and tail light circuit. Common problems will be loss of ground, bad bulb or bad socket.

 

[nudenut]

Is there a ground wire trunk

 

[BeepBeepRR]

Make sure you have the 1157 bulb in the socket correctly. Make sure the pins are in the correct slot. Lower pin for the deeper slot and upper pin for the shallow slot. My friend had a chevelle with the bulb forced in backwards and had the same issue as you.

 

[nudenut]

I've had the bulbs for 15 years but i have changed the turn signal switch a couple of years back

 

[s/w theo]

Sounds like a bad ground somewhere at the taillight area. Run a temp. ground wire from the housings to the body some place good & see if that fixes the problem.

 

[twecomm]

You state that the fronts work properly. Is what you describe happening when tail lights are turned on, or when off. On only one side of the rear or both sides ? It is possible there could be an internal short between the dual filaments of one of the lamps or lamp sockets on that one side of the rear of the car where you see this problem.
Remove all the lamps on the problem side and visually inspect the bulbs. Or, you could swap all the lamps between left and right rear to rule out a lamp issue that would also give you a chance to inspect lamps and sockets. Of course, it could well be a problem originating within the turn signal switch so don't rule that out.
Here is a link to DropBox where you can down load a PDF I created when I repaired my turn signal switch in my 66 Charger. When you go to the link below, it can be viewed or downloaded by clicking the down pointing arrow in upper right bar. Another window will pop up asking to join or sign up. At the bottom click on "Or continue with Download only". Certainly there are differences between a 66 and 69 model year, but this may be helpful to understand hot the switch works and relates to wiring. Dropbox

 

[nudenut]

You state that the fronts work properly. Is what you describe happening when tail lights are turned on, or when off. On only one side of the rear or both sides ? It is possible there could be an internal short between the dual filaments of one of the lamps or lamp sockets on that one side of the rear of the car where you see this problem.
Remove all the lamps on the problem side and visually inspect the bulbs. Or, you could swap all the lamps between left and right rear to rule out a lamp issue that would also give you a chance to inspect lamps and sockets. Of course, it could well be a problem originating within the turn signal switch so don't rule that out.
Here is a link to DropBox where you can down load a PDF I created when I repaired my turn signal switch in my 66 Charger. When you go to the link below, it can be viewed or downloaded by clicking the down pointing arrow in upper right bar. Another window will pop up asking to join or sign up. At the bottom click on "Or continue with Download only". Certainly there are differences between a 66 and 69 model year, but this may be helpful to understand hot the switch works and relates to wiring. Dropbox

Thank you

 

[davek]

DO the temp ground

 

[Nacho-RT74]

Ok… a small weird similar experience a friend of mine and I got with a 70 and laters chinesium TS on his 73 Charger…

Couple of wires were turned around on switch. Wires were incorrectly riveted to the switch. So he had to swap around the wires crossed.

Since the wires are all together like a ribbon and swap terminals at plug was make it look awfull, he cut and spliced the riveted swaped wires at TS end.

There is a chance one of the rears wires is swaped with the brakes light. Unfortunately the chinesium TSes are made on a dif color code than factory, so will need to trace the wires and compare with your old original one

On the original, white is for brakes, dark brown is left rear and dark green is right rear… (or backwards, allways forgett that)

So I think white is crossed with either dark brown or dark green.

Just thinking out loud.

On a side note… the ground at Radiator core support has nothing to do with rear blinkers. Not even with fronts, because they are all chassis grounded. Radiator core support just feeds headlights. Althought it gets the battery ground lead, which feeds all the car chassis.

 

[toolmanmike]

Hello
i hope someone can help me
I have a '69 Charger and i'm having trouble with my lights. My turn signals work correctly on the front of the car, but on the taillights both will flash when the turn signal is engaged to right.
Im using a reproduction turn switch. I checked the earthing near the radiator all good.

Thanks in advance

If you decide you need a switch. You might have to ask Dan if he will ship to Australia. FOR SALE - New OE Turn Signal Switches '62-'63 and '64-'69 (They're baa-aaack!)

 

[nudenut]

Ok… a small weird similar experience a friend of mine and I got with a 70 and laters chinesium TS on his 73 Charger…

Couple of wires were turned around on switch. Wires were incorrectly riveted to the switch. So he had to swap around the wires crossed.

Since the wires are all together like a ribbon and swap terminals at plug was make it look awfull, he cut and spliced the riveted swaped wires at TS end.

There is a chance one of the rears wires is swaped with the brakes light. Unfortunately the chinesium TSes are made on a dif color code than factory, so will need to trace the wires and compare with your old original one

On the original, white is for brakes, dark brown is left rear and dark green is right rear… (or backwards, allways forgett that)

So I think white is crossed with either dark brown or dark green.

Just thinking out loud.

On a side note… the ground at Radiator core support has nothing to do with rear blinkers. Not even with fronts, because they are all chassis grounded. Radiator core support just feeds headlights. Althought it gets the battery ground lead, which feeds all the car chassis.

I remember when i installed the new switch it had couple different colour wires and it had a hand drawn instructions on how to install it

 

[Nacho-RT74]

Well, 70 and laters switches includes the plug… I think earliers not so you have to install terminals on your old plug? But still with correct pin out at plug some wire could be riveted wrong on the TS end! Hence why I make mention on that! Personal experience.