1968 cougar just got all LED lights installed. Might be a bad idea. All emergency flasher lights work, and all running lights work. I get no action on both L/R turn signals. It appears even the sequential motor is not rotating. Can the cat handle this mod? No other mechanical activity was done. Oh, and only the center back light blinks with the emergency flasher. Not sure what it was with incandescent bulbs. Please advise.
I forgot to mention that we already installed the K-5 solid state relay turn signal from WCCC
There are PLENTY of articles on this topic, on THIS forum. PLEASE go look it up.
I would swap back to the incandescent bulbs. Likely they will not work either.
On a 1967-68 Cougar, only the center lights flash in emergency signal mode.
LED bulbs should work fine with your setup - the relay and motor-driven sequential switch contacts (in good shape, not black with carbon) can operate either type of loads (LED or incandescent).
If the OEM sequential motor is not rotating, you have a separate problem: either the in-line fuse is popped or the motor has died.
Check for power on the orange/green wire feeding the motor.
If you do not have power, check the in-line 15A fuse under the dash to the right of the steering column.
If the fuse is good, test the turn signal switch.
If you do have power, the motor has probably given up.
Vic Yarberry
Cougars Unlimited LLC