Hey guys looking for a little input please. The other night I was coming up to a red light and i turned on my left blinker and i noticed as i was slowing down, (applying brake) and the RPM's were going down that my blinker started flashing really slow, and it was flashing normal speed a few seconds ago as I was driving. As i was stopped at the red light it stopped flashing and stayed on solid, as if a bulb was burned out but they all worked. As I was slowing down, coming up to the red light, none of my other lights dimed in brightness at all and my gauges all had good readings. I try right blinker, stayed on solid, no flashing. I try hazards and they work fine. So last few days im driving around maually moving my blinkers to get them to flash. I was 99% sure it wasn't the flasher fuse because then it wouldn't turn on at all. So anyway, I go to parts store, buy fuse, go out to truck and start it turn on blinker its solid. I open hood to check something not related, as i close hood the blinker starts flashing. I didn't even open the fuse panel yet or touch anything. Now its flashing like nothing even happened. Could this be a ground issue? I'm no good at chasing electrical problems, please help.

 

Well, if your no good at chasing wiring problems, here's your chance to practice. With you closing the hood and they start to blink normally, that tells Me it is something loose. Whether it be bulbs, wire connections, fuses, relays, or possibly one of the wires themselves.

I suggest to turn them on with the key on and start wiggling all that is related, starting at one spot working through the whole system.

 

+1 on that.. Also look for any splits or bare wires that could cause them to be shorting out.

 

I would suspect the turn signal flasher first, as long as the lights outside are lit solid and the indicator lights on the dash are also. The hazards are on a different flasher.

The flasher isn't a fuse, it's a thermal relay that makes the lights blink, it's either round or square in the fuse panel.

 

Plus one on that too. Also disconnect all the connections in the circuit (one at a time) and chaeck for any corrosion. If you find any, Permatex makes an aerosol spray cleaner for connectors.

 

Ok great i'll check into all this, and thanks alot for the input. Oh yea, sorry about that, your right its not a fuse. So when a thermal relay is going bad can it stick closed causing this problem, or will it just go out completely similar to a fuse? Yea your also correct about the thermal relay, its round and I think the #'s on it are 552.

 

They can go bad either way.
They can stick closed or open.