Turn signals turn on at same time and do not flash?

1966 GMC TRUCK
42,376 MILES • 5.7L • V8 • 2WD • MANUAL
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EPIPHANY101
  • MEMBER
  • 13 POSTS
Hi, been awhile but here I am again in need of some wisdom. Changed front turn signals to LED on my truck listed above 1500. Now when I hit the switch both come on and don't flash. What gives? I added a resistor on the wires so I am kind of lost at the moment. Thank you in advance for any help you can provide.

Dave
Jul 10, 2023 at 5:45 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
The LEDs is what does it, the resistance is too low for the flasher to work but to be sure reinstall the old bulbs, I think they may make a low resistance flasher I would check online. Please let us know if you need anything else to get the problem fixed.
Jul 10, 2023 at 12:45 PM
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