Here's a weird delima:
My sister-in-laws '98 Blazer has gone nuts. At first the problem was just the blinker/flasher mechanism's were on the fritz. She would turn the signal on and it would click very rapidly, either direction. Then it started clicking irratically when she would press the brakes. Now when she gets in and tries to start the thing the clicker goes crazy, and the truck won't even start! I have heard the wiring harness could have a short and it may even be a common problem. I am trying to help the girl out since she is 3.5 hours away. Any suggestions?

 

sounds like a bad connection ,or battery is weak. just my 2-cents