when ever i hit my brakes the flaser relay behind the glove box clicks nonstop till i let off the brakes and some times when im just cruising down the road.. ive replaced the relay but still does it. could it be the turn signal switch on the steering column that needs to be replaced?

 

Kinda sounds like you have a short somewhere, when did this problem start? and when it started, did you do anything prior to the lighting, replace a bulb ect?

 

It was there when i bought the truck back in January but it didnt bug the crap out of me till recently and every thing works it just clicks nonstopp some times until i tap the brake or mess with the turn signal switch

 

the multi function switch is expensive. Do you have any pull it yards around you? if you do, go to one, and grab a couple out of a couple blazers there, they are super cheap there, and try them, if the next one does the same thing, try another one, if that one does the same thing, then that is not the problem. and i would start digging around somewhere else.

I know it sounds like a lot of work, but I am trying to save you money. would rather have you spend a little money to find out if that is the problem, then to spend 100$ on a new multifunction switch to find out, that it was not the problem. then you just spent that money for no reason.


But with you messing with the turn signal switch, that is leading me to believe that it is indeed the multifunction switch (turn signal switch)

 

what are you driving? IF its the 1999 In your signature Wiggle the hazard switch when its clicking... see if that helps...

IF so you can buy a replacement hazard switch instead of changing the whole multifunction switch. Its way cheaper in the meantime.
Post back with your results when you wiggle the hazard switch.

 

ahh touche!

 

When i wiggled it it made it go away and when i pulled it toward the passenger side it would click rapidly

 

Ok I would pull the hazard switch and see how clean the contacts are inside and on the switch its self.

This is how you remove a broken hazard switch Broken Hazard Switch Repair How-to - Car Forums and Automotive Chat

If you get a really fine screw driver and pry the back forward a little It should release to little lock tab Gently pull the switch out.

Dont force it to much it will snap. If the switch needs to be replaced make sure you get an OEM one because the dorman ones are plain cheap quality and suck.


EDIT: Here is a picture to the little locking tab



its located on the back of the switch towards the cluster.

 

Alright thanks and yea im never buying a dorman product after the lower cooler lines i bought 1 month ago blew a hole in the hose part while on my home from work yesterday.

the hose they used was coolant hose which shouldnt be used for oil so im replacing the hose part with hydraulic hose tomorrow with clamps

 

that sucks man Let me know how you make out with the flasher switch.