First check that the Indicator switch is actually contacting and sending a supply to the flasher unit.
Your truck's blinkers are wired through an electronic relay called a Flasher Unit.
It should be under the dash and is the unit that produces the "ticking" sound as your lights flash.
Turn on the right hand blinker so that you can find the flasher unit, then remove and replace with a new one from the nearest auto parts store.
Are not very expensive!
Last edited by doc bob; 08/04/2008 4:40 AM.
