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 12:03 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
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 1:33 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 6:21 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
or it is a socket for the bulb is bad. Check ground for rear lights.
May 29, 2016 at 8:29 AM
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