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Signal lights

Tiny
JIM.HYATT
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 169,000 MILES
My signal lights work fine until I turn on the headlights or park lights, when they are on the signals bleed to the opposite side. No matter which side I select the opposite side flashes lightly too. I replaced the flasher under dash and have checked all of the bulbs, fuses and sockets
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Monday, February 6th, 2017 AT 8:02 AM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 12,950 POSTS
Sounds like a bad ground at one of the lights. That or a short in the trailer wiring harness or rear light junction block.
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Monday, February 6th, 2017 AT 10:49 AM
Tiny
JIM.HYATT
  • MEMBER
  • 2 POSTS
Thank you steve, I did find the problem, G112 that battery ground connects to was the problem. Repaired the ground and problem solved.
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Monday, February 6th, 2017 AT 11:18 AM
Tiny
STEVE W.
  • MECHANIC
  • 12,950 POSTS
Yep, as a man on an old list I frequent was fond of saying "Check the grounds". It is one of the major weak points on today's vehicles.
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Monday, February 6th, 2017 AT 11:52 AM

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