My Mk2 fiesta's indicator make a buzz when i use it, the lights don't flash they just stay illuminated (all around the car) when the indicator/hazard button's engaged.

Could anyone tell me why this is?

I have replaced the indicator stalk with a new one but the problem still remains and all fuses are in-tact..

 

flasher unit? Worth trying, they're only about a fiver

 

earth problem

 

check your earths!