Well I personally have a 2000 Malibu LS and have had the same troubles random clicking noises when signals aren't on then no signals or random signals. The problem is your hazard relay switch, it is located in your dash board very easy abd cheap fix.
possible bad turn signal switch in the steering column or a bad ground on your turn signals.
Check the 2005 GMC Envoys turn signal flasher. The flasher could have an intermittent issue causing the signals to not work.
my turn signals do not work in my 1992 Pontiac Firebird
they do work
hazards and turn signals have separate flashers. replace flasher for turn signals
You probably have a bulb going bad. The filament in the bulb is broken and sometimes it makes contact and sometimes it doesn't.
That is a good thing. You want the turn signals to work.
If the turn signals in the dash don't work, what about the outside front and rear turn signals? Working? Not working? If it's not working, replace the turn signal relay under the dash.
not sure what causes it, but sometimes my signals will just not work. with lever still in position to activate signal, push button for hazards. then put signal lever in "off" position. turn off hazards. signals should work. temporarily anyway.
There are two flashers, one for the hazards and one for the signals.
The 1990 VW Jetta turn signals will not work when the ground wire is broken or corroded. The turn signals may need the lightbulb's replaced.
Check/replace turn signal flasher