I have a 1987 Thomas Transit Liner bus conversion.
A few weeks ago while driving my bus I noticed the blinkers weren't blinking properly. When I turned the blinkers on my battery guage flickered as well. Over the next few days they went from barely blinking to not blinking at all.
I took the bus to a mechanic and he couldn't figured it out because "there's so much extra wiring that's been done to the bus." Referring to the conversion.
I will say that I did not do the conversion myself. I purchased it already completed. Been driving it almost 2 years without a problem until now.
Going back to the mechanic, he showed me the wiring/fuse panel under the drivers side window and pointed out that a lot of things were rusty. He said getting that cleaned up just to start to narrow it down would be about 12 hours labor. He did say that he replaced the flasher and it didn't work. There are 2 of them so I assume one is the flashers and one is the turn signal?
So I took the bus home and cleaned up the panel myself. I learned how to replace the circuit breakers and had a neighbor help me with a voltage meter to see if anything wasn't getting the proper voltage.
It went from this
After doing this work my blinkers are still not working.
Next I went and replaced the flasher and blinker cylinders on the wiring panel with new 552 parts from autozone. The flashers and blinkers both worked for about 15 seconds and then stopped. I also smelled a burning smell coming from the dash panel.
The next day I took apart the front dashboard panel to see if anything was loose and I couldn't find anything.
Also, during this time I've noticed a click coming from the gauges. The click happens about every 5 seconds. I narrowed the click down to the TACH guage. When I removed the power wire from it the clicking stopped. When I replace the wire the clicking starts again. Any help with how I can stop the clicking or what it might mean? Also, I noticed the clicking when I got the bus back from the mechanic and before I cleaned up the wiring panel so I'm sure it wasn't something I did while cleaning up the wire panel.
I noticed that the left blinker was grounded to one of the screws on the TACH guage. When I tested removing it and trying another ground area it didn't solve the clicking or the blinker issue.
So after doing many hours of work trying to solve the issue i'm stuck. Is there anyone with knowledge in the area that may be able to help me?
Another thing to note is that I have LED blinkers in the back and incandescent bulbs in the front of the bus.
Sorry I noticed most pics are sideways and I don't know how to fix that.