New Member/ '65 C10 Turn Signal Problem.

[theastronaut]

I've lurked on here awhile before finally joining. The last few years I've restored a '65 C10 long/fleetside. I've got it about finished up but I'm having trouble getting the turn signals to work properly. It has a new turn signal switch in it. The headlights/park lights work properly, and turning them on has no effect on the turnsignal problem.

Here's what its doing:

With the ignition switch ON:

If I turn the left signals on: The front left light flashes but both rear lights flash.

If I turn the right signals on: They work as they should.

When the signal switch is turned off, the rear lights both flash- fronts are off.

If I push the brake pedal (turn signal switch still off), the rear lights quit flashing and the brake lights work normal. Let off the pedal and the rear lights start flashing again.

With the ignition switch OFF:

If I push the brake pedal the brake lights come on as they should, but the flasher relay cycles without any lights flashing. The rear brake lights do slightly dim when the flasher relay is cycling.

I feel like the problem is in the switch or wiring since all the lamps work at one point or another (so they must be getting power and are grounded). I really don't know what to check to see where the problem is though, so any help would be appreciated!


Couple pics of the truck: