Hey all,

My father has a 1989 Ford f-150, with the 5.0 engine. We are having a problem with our emergency flasher. The turn signals are working fine. But when we try and use the flasher, it will blink really fast, or not at all. We bought a new heavy duty flasher, but we are still having the same problem. What do you think could be wrong?

Thanks , James.

 

Sounds like a bulb maybe? when you turn the signals on do all the bulbs work?

 

Yes. All the bulbs are working fine.

 

All the fuses are good and are the correct amp. The bulbs are working fine, brake lights, turn signals, running lights.

So that's why I am stuck.

 

did you try to test the switch

 

The switch is what I am going to look at today.

 

Problem Fixed! Turns out there is a Second Flasher in the dash, behind the glove box! I am glad we got this problem solved, and fixed. This truck is our Hauler, we tow the Bass boat, and we have a Lance camper on her.

Thanks for all the help again.