Replace or fix the turn signal switch. They are pricey.
SOURCE: Turn signal continues to make the clicking sound
I had the same problem, I found the post quoted below and fixed the problem in about 1 hour without having to replace any parts. Hope this helps!
(I can't seem to get back into the link but had copied the answer - the original link is: http://www.allaboutauto.us/2007/04/07/1999_chevrolet_blazer_turn_signal_clicking_noise.html)
"I had this same problem and fixed it myself. The problem is caused by the contacts rubbing and releasing small particles which conduct small amounts of electricity and cause the flasher relay to click. From a GM Goodwrench mechanic.
Disconnect Battery Before doing this.
You need to remove the turn signal arm from the steering column. This may seem difficult but it really isn't. Separate the top and bottom covers. Find the screws and remove the switch. One is located behind the column and requires some dexterity to get out. I used a Torx bit on a 1/4 box wrench.
The difficult part is separating the switch to clean the contacts. Take your time and you can figure out how to separate the switch. If I remember right, the switch separates and then the emergency signal switch slides out. Also, pay special attention to the way the rotary wiper delay switch is set into the switch.
Once you can see the contacts, clean them off of all lubricant and metal pieces. I would hesitate to use Isopropyl Alcohol for this because off the plastics involved. I just used lots of Q-Tips and a lot of patience.
Finally, get a good Dielectric (non-conducting) lubricant from auto store and cover all contacts with a thin layer. Put the switch back together, reinstall and test.
This took me about four hours to repair. Because I took my time and did not force anything. Once I figured it out it wasn't that hard. The hard part was the rotary delay switch and how it was set into the switch.
I figured if this didn't work, I was going to have to replace the switch anyway, so what the hell. Just make sure your local auto parts store has one of these available if you screw this one up.
Did this about four years ago and problem has not returned since."
SOURCE: my 2000 saturn sl2 turn signals stopped working
HI"
Vehicles:
Make/Models:
Model/Build Years:
SATURN/LS
2000
Defect:
VEHICLEDESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES DO NOT COMPLY WITHREQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, ANDASSOCIATED EQUIPMENT." BECAUSE OF A PROBLEM IN THE HAZARD WARNINGSWITCH ASSEMBLY, THE TURN SIGNAL LAMPS MAY NOT WORK OR MAY WORKINTERMITTENTLY WHEN THE DRIVER USES THE TURN SIGNAL LEVER OR HAZARDWARNING SWITCH. IF THE VEHICLE TURN SIGNAL INDICATORS ARE NOT FLASHING,THEN THE TURN SIGNAL LAMPS MAY NOT BE FLASHING.
Component Affected:
EXTERIOR LIGHTING:TURN SIGNAL:SWITCH
Corrective Action:
OTHER DRIVERS MAY NOT BE ALERTED THAT THE VEHICLE IS TURNING AND A CRASH COULD OCCUR.
Consequence:
DEALERS WILL REPLACE THE HAZARD WARNING SWITCH ASSEMBLY.
Mfr. Campaign #:
99045/00-C-03
Mfr. Involved:
GENERAL MOTORS CORP.
# Vehicles Affected:
1395
File Date:
07/29/1999
The vehicle you are working on may or may not be affected by this recall. Contact the vehicle manufacturer for clarification. hope this solves your problem.THANK YOU
SOURCE: 99 Chevy Tahoe... Rear turn signals, brake lights, and hazards
I had this problem, and to be honest, it happened to the left side about a week later...it's the board that the bulbs plug into...it's a very common problem with this model. So popular that you can normally get the socket board off the shelf at a parts store! it's extremely simple to replace, and I replaced all the bulbs at the same time!
SOURCE: Turn Signal Clicking doesn't stop on my 03 Alero
you need to replace the multifuntion switch (sigal/headlight/wiper switch)
1 disconnect the battery
2 remove the steering column covers 3 bolts on the bottom should be 7mm
3 seperate the cover (2 piece)
4 remove the screw in the centre of the multifuntion switch (25 or 30 torx)
5 remove the wiring connections
INSTALLING
1 reconnect wiring connections
2 install new switch (push in the HORN CONTACT ) make sure switch seats in flush
3 install torx screw
4 install the steering column covers
5 reconnect battery
hope this helps
SOURCE: The hazard lights and turn signals stopped working
You have problem with the FLASHER; the flasher is located in the
Junction Block (under the dash, left of steering wheel. See diagram on this page). Check the following repair tip:
Look at the end of the flasher
relay with the prongs sticking out. There will be 2 plastic tabs holding
it together. Break or bend these back. Pull out the insides. On one
side will be all the components. On the other side will be solder
joints. Get a magnifying glass and inspect these joints. One or two will
probably have stress cracks. Just dab a little flux on this joint and
heat it with a soldering iron until it melts back together.
You may need
to add just a little solder. Be sure to get the pins hot and not just
the solder. They need a lot of heat. Slide the relay back into its cover, dab a little super glue or tape it back together, and you're
ready to go.
WJ Junction Block (under dash, left of
steering wheel)
Check the Fuse 4, 15AMP for Flasher, hazard switch (see Junction Block diagram above for location of
turn signal Flasher relay - Mopar p/n 4686094).
Hope this solve it (remember comment and rated this).
Testimonial: "Quick with the answer and good info. Thanks much for the help! :)"
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