Blinker blinking too fast
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Mountain Pass
Joined: Apr 2003
Posts: 248
Likes: 2
Blinker blinking too fast
What makes a blinker blink way too fast - bad ground? I hadn't driven my '78 in a couple of weeks, had to clean the contacts on the bulb for the dash left turn signal indicator before it would work, then I had to clean the contacts on the bulb holder(?) for the front driver's side blinker (turn signal, 1157 bulb - I think) before it would work. When I got everything working, it started blinking too fast. I thought that I would check and clean all of my grounds. Any suggestions?
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
The non-electronic flashers in these trucks work by the current through the turn signal circuit heating up an element inside the flasher, hence the name thermal flasher. If it's blinking too fast, there's too much current going through the circuit, which is most often due to the wrong bulb being used somewhere (too low of resistance = more current = more heat in the flasher = faster blinking).
Try ranger's suggestion though; that will easily tell you if it's the flasher.
Try ranger's suggestion though; that will easily tell you if it's the flasher.
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sonicsaleen
1999 - 2016 Super Duty
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Nov 27, 2009 09:46 AM
