Hello all, i am having a few electrical problems with my 86 iroc. I noticed it a while ago with out knowing it was a problem. I was riding down the road one day and i could hear this rattling / buzzing sound coming from my dash. At the time i didn't have time to check it out and it soon faded before i got to where i was going. So life went on, until i tried having my radio on. It worked well for about 20 mins, then it started to cut out and crackle and that same buzzing and rattle came back. Now as i am replacing lights in my cluster with leds, i noticed if i turn my light **** to dim or brighten the lights they do not do that. They will either be on, or go out all together. Now if i mess with it i can get the lights to flicker and that same buzzing sound comes back. If it buzzes for to long it turns into a higher pitched squeal. I turn it off because i am afraid of a relay catching fire or something. Does anyone have any clue what this can be? I would like to fix it while i have my whole dash torn apart. Thanks everyone!

 

Based on what you are describing, I would first look to the headlight switch. Sounds like the reostat has pooped out.

 

I will check the switch out, but the sound comes from the middle of the dash, towards the radio.

 

there is a box rite where you're talking about . put your head under the dass ,you'll hear where its coming from pull that box 4''x 4'' out it wont buzz any more but it wont fix your problem either (headlight switch) i think too.

 

Cool cool, ill have to check these things out tomorrow and ill keep yall posted.

 

Okay so it turns out my Headlight switch is bad so i am replacing that. Where is this buzzer box at? Also what is the name of it so i can find a replacement. Thanks so much guys.

 

I dont know the (name ) for the box but if you look just to the rt of the steering column where the column mount is ,you will see a black box about 2 inches to the rt of the column . about 4"x4" x1" thick (roughly) just pull it out the plug is mounted the box just sticks out and is held in place by the plug.