68 Charger side Mark lights also blinkers ?

[Canadian1968]

The small rounder side marker light on a 68, are they supposed to flash with the signal ?

I have installed led bulbs in all lights except my headlights .  Every thing works except when I put my signal on . all four side markers flash instead of just one side ?   Any ideas I have a crossed wire someone .  I stared at the wiring diagrams but can't figure it out

[Lennard]

The side marker lights are not supposed to flash.

[Bronzedodge]

If a turn signal causes both sides to flash, look for a bad ground - sometimes too much paint.

[A383Wing]

the side marker lights are only supposed to be on steady when parking or head lights are on......they are not designed to flash with the turn signals.....they are only a single wire going to them for running lights only

If yours are flashing as you say, I bet you are getting a feedback from your front and rear LED bulbs that you installed......look close at your dash at night with the parking lights on......do your in-dash turn signal green indicators also light up dim as well?

To stop the feedback issue, either get a quality LED 1157 bulb for all the front and rear of the car, or another way is to put a one way diode in the parking and turn signal circuits

Bryan

[Canadian1968]

I swapped out the rear bulbs in the tail lights back to regular bulbs left the LED in the turn signails and park lights ... seems to have fixed the problem !

I knew it was something to do with the LED just didn't know what !

[Canadian1968]

going to bring this thread back from the dead.  I had read some previous LED installs that don't mention the feed back problem ? I am getting a led flasher to replace the original. Will this fix the feed back problem ? If not, is it simply because of the led bulb quality ? if I need to put in a one way diode ....where exactly would I put them ? 

[A383Wing]

going to bring this thread back from the dead.  I had read some previous LED installs that don't mention the feed back problem ? I am getting a led flasher to replace the original. Will this fix the feed back problem ? If not, is it simply because of the led bulb quality ? if I need to put in a one way diode ....where exactly would I put them ? 

The LED flasher will not stop the feedback issue....the flasher is only designed to stop the "hyper-flash" after installing the LED bulbs.

Better quality LED's may stop the feedback issue, if not, you have to put diodes in the parking and turning circuits to the bulbs

Bryan