Thanks fellas.
I've identified the hazards as the ones under the dash with a red pull switch. I've tried to get the hazards to work by trying many different combinations of having the ignition on or off, having the runing lights on or off and nothing works. What becomes strange is that when the running lights are on, the switch pulled out and the brake pedal pressed, does the light switch itself light up...but no flashing lights.
The turn signal switch wiring comes out of the column from the turn signal to a hub where it connects to the hazard switch.
Any thoughts?? The electrical has been butchered as the truck was formally a tow truck with electrical running all over the place to defunct mechanicals.
