Ok, 91 F-150. Bought it things worked fine. A week ago i was driving home noticed my Right blinker symbol was staying illuminated. Turn hazard lights on it would flash, but once i turn hazard lights off, it would still illuminate. Now with my headlights off and dash lights off, it will flash when activated HOWEVER my entire cluster then flashes with it. with parking or headlights on. Right turn then wont flash and dash doesnt flash in unisin either. Left blinker works just fine no problems with that one. Any ideas where to start with first? i personally despise electrical issues btw!

 

Sounds like you have a ground problem.
Check all of your body grounds.

 

Check the light bulb sockets too. There is an intermittent open circuit on the ground wire inside one of the front corner light sockets on my truck and it acts similar to yours when it is acting up. I don't have the whole cluster blinking, though.

 

you could possibly have a burned out/crossed filament maybe?

 

havent taken time out ot actually check anythign but thanks for the directional assistance guys. will let you know what i find

 

Have not seen it do it in a truck. However back in the day my father had a couple grandah ( spelling?) IF the front turn/marker light burned out, when you turned on the headlight or parking lights the Indicator on the dash would light. This was in the 76 and I think he had a 79ish later on. They both did this. So I would check the front lights first.

 

Granada, AKA Grenade.

 

that gets my vote!

 

Shorted/Crossed/Burned filament for the win. after pullign the bulb the short was clear as day... looked like someone soldered the two circuits together inside the glass. new bulb fixed the problem. thanks guys

 

I know someone here would know what the hell I was talking about! LOL

 

glad to hear it was something easy to fix