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Old 02-07-2020, 01:59 PM   #3
WyattTX
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Join Date: Nov 2015
Location: Down south
Posts: 518
Re: Passenger upper taillight bulb does not flash.

Quote:
Originally Posted by 95 S_Trucker View Post
It’s a dual filament bulb. One filament for the running light, another for the turn signal/brake light. Most likely one of the filaments is burnt out. Replace the bulb and see what happens.
I forgot to mention I changed this bulb out the other day. It was failing at random times, and now it wont work at all. The wiring harness near the rear of the truck looks fine.
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