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2003 GMC Yukon Intermittant no starts

Tiny
FIREMAN190
  • MEMBER
  • 2003 GMC YUKON
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 48,000 MILES
I have a yukon, 2003 XL, with intermittant no starts. Replaced battery, problem still occurs, two mechanics checked vehicle, one of them a dealer, who found no error codes and no other problems. Problem continues, every few days or so. It will start after a few turns of the key. Interior lights and all accessories work when vehicle will not start. Any sugeestions?
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Monday, February 16th, 2009 AT 7:41 PM

5 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
What exactly does it do when it wont start? Be as elaborative as possible
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Monday, February 16th, 2009 AT 7:58 PM
Tiny
FIREMAN190
  • MEMBER
  • 4 POSTS
It wont crank when key is turned on, but interior accessories lights etc all work.
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Monday, February 16th, 2009 AT 8:07 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Sounds like a bad ignition switch but I would check for power at the stasrter motor when this happens, if you have power at the purple wire at the starter when it wont start then replace the starter motor, if not then check for power at the yellow wire at the ignition switch and if none there while cranking then replace the ignition switch
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Monday, February 16th, 2009 AT 8:12 PM
Tiny
FIREMAN190
  • MEMBER
  • 4 POSTS
What is easier to replace, switch or starter? Both cost or difficulty?
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Monday, February 16th, 2009 AT 8:26 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Starter is easier to replace. About 100 dollars for a starter motor
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Wednesday, February 18th, 2009 AT 11:33 AM

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