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Left turn signal works only 5% of time

Tiny
JIMYJO
  • MEMBER
  • 2003 GMC YUKON
  • 16,600 MILES
When you turn on the left turn signal it clicks. Sometimes it blinks but only once or twice then stops and clicks. Right signal works fine. Left rear bulb looks fine. Front bulb was burned out and I replaced. Still does the same thing.
Wednesday, December 28th, 2011 AT 8:23 PM

5 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So when it stops blinking does it just stay on solid?Also do you have a test light to do some testing?
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Wednesday, December 28th, 2011 AT 8:28 PM
Tiny
JIMYJO
  • MEMBER
  • 3 POSTS
No test light. It goes off completely and clicks
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Wednesday, December 28th, 2011 AT 9:27 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Sounds like a bad flasher but without atleast a test light we cant do much testing.
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Wednesday, December 28th, 2011 AT 9:35 PM
Tiny
JIMYJO
  • MEMBER
  • 3 POSTS
I thought the flasher controlled both sides. Can it be bad and still work on right side. I can get a test light if it will make it easier to determine. Cheaper than the dealer.
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Wednesday, December 28th, 2011 AT 9:45 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
As you can see in the diagram I posted its more of a module and there is a fuse for the left and right turn signals make sure those fuses are good. Also make sure you get a computer safe test light.
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Wednesday, December 28th, 2011 AT 10:00 PM

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