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1999 GMC Yukon PINGING NOISE WHEN DRIVING

Tiny
GADDIS02
  • MEMBER
  • 1999 GMC YUKON
Other Category problem
1999 GMC Yukon Engine Size unknown Wheel Drive Type unknown Automatic 210000 miles

I HAVE A PINGING NOISE WHEN DRIVE UP HILL WHAT DOES THAT MEAN? AND WHY AM I KEEP GETTING LOW OIL IN MY CAR ALSO.

THANKS STEPHEN
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Friday, January 11th, 2008 AT 9:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the ignition timing, the knock sensor might not be retarding the timing when its senses vibration/detonation/pinging/spark knock-the engine could be overheating or the octane you're using.
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Saturday, January 12th, 2008 AT 2:54 AM

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