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Old 01-25-2018, 02:20 PM   #1
nrb's70gmc
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Join Date: Sep 2008
Location: magalia,ca
Posts: 366
Electronic Flashers Clicking?

Hay All,

after installing led's and the electronic flashers (blinkers/hazards) they work great (installed maybe a month ago) with the clear gmc (lmc truck) lenes and amber led bulbs they look amazing. and work great.

Fast forward to today
walk outside and my truck is making a clicking sound
open the door and felt the electronic flasher in the hazard spot (it was clicking without the hazards being on)

i turned on the hazards (work fine) turn off and the formentioned clicking continues (noticed a slightly diffrent clicking rythem between the harzard on&off)

i pulled the hazard flasher out (no more clicking lol) turned key on/started truck.

the blinker flasher starts making the same clicking noise (turn key off) it stops.

im confused.

my set up is two electronic flashers (w/external ground wire) connected to a polarity adapter.
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1970 2wd 3/4 ton- 2004 crate 350 thorley tri-y headers-edelbrock performer eps manifold 600cfm performer carb, crane cams energizer cam,lifters, dual 2.5 magnaflows, mallory HEI, powermaster 140 amp altenator, griffen aluminum radiator.(8 MPG)
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