Here we go again, my back left indicator is not working and my front left is flashing really slow, will this be an earth issue at the back left or something else i've seen other people have problems with slow indicators but they say it affects left and right so think i may have something different wrong. Any help would be blinding.
 
Mechanical flashers will run slow on one bulb. If the other side is OK for speed then the flasher unit is OK. It's either a blown bulb, bad earth or bad live - or simply a corroded socket. A multimeter is your friend.
 

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