Intermittent Turn Signal Problem

[Scout]

My M813 has a problem with the left turn signal working intermittently. The right signal and the 4-way flashers work, but the left is hit or miss. I went through all 4 corners and disconnected the harnesses and greased all the connections. Under the dash, there is what looks like a much larger version of the rubber boots at the other connections. It was hot, so I took it apart and cleaned up and greased the connection inside (what is this?)

If I put the signal lever in the left position and it does not work, sometimes moving the battery switch will make the signal start flashing.

It's done this for a while and I started to chase the problem down yesterday, but it seems like the left side was working reliably and the right was hit or miss at one point.

 

[doghead]

Remove and clean all the bolts that hold the light housing. 2 of them are used for grounds. Also, clean the one mounting bolt on the flasher unit, that grounds that too.

 

[Scout]

Thank you. I just broke off the left rear signal skidding logs. I re-attached the ground connections to the two pins inside and glued it all up. I expect there is a bad connection at the bolted connection. I assume a bad ground in one signal would cause neither to work on one side because there would not be enough load on the flasher?

 

[MyothersanM1]

I had an issue with the left, right and hazards would light up steady with no flashing. This happened intermittently. I went through and checked/cleaned all grounds including flasher unit and the signal lever. I still had the problem. I broke down and bought a brand new signal lever and flasher unit. Installed them. No more problem.