Turn signals

1995 GMC SIERRA
190,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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ANDREW SCOTT BISSEY
  • MEMBER
  • 2 POSTS
My rear left turn signal and brake light did not work, it is not the bulb. I replaced the curcuit board and they still did not work. I played with some wires now the brake light and turn signals front and back blink fast as if one was out still, but they are not.
May 28, 2016 at 7:03 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check ground wire at lhe rear of frame make sure it is a good ground. then check to see if power is coming to bulb may be a bad socket.
May 29, 2016 at 8:33 AM
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ANDREW SCOTT BISSEY
  • MEMBER
  • 2 POSTS
The left turn signal in the front and back both work they just blink fast. I do not get it it. Might be a ground wire I guess.
May 29, 2016 at 1:21 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
or it is a socket for the bulb is bad. Check ground for rear lights.
May 29, 2016 at 3:29 PM
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