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The running lights come on when I turn the key on & the vehicle keeps running when I keep the lights bvuit turn the key off

Tiny
KJAMMON
  • MEMBER
  • 1990 GMC SUBURBAN
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 184,000 MILES
The running lights(tail lights, sidelights & front marker lights) come on when turn the ignition key on & the

vehicle also keeps running when the headlights are on after I turn the ignition off.
Saturday, September 19th, 2015 AT 6:21 AM

1 Reply

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Check the wires under the dash to see if any are worn or crossed. The only other thing I would check would be the ignition switch itself not making the proper connection or bad.
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Monday, September 21st, 2015 AT 4:01 PM

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