2001 GMC Savana spark color

2001 GMC SAVANA
104,000 MILES • V8 • 2WD • AUTOMATIC
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RANDYFRY
  • MEMBER
  • 1 POST
what does a yellow spark mean?
Jan 24, 2009 at 9:05 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
It means it is weak spark which will cause poor performance. Usually can be solved with new plugs and wires. Also new coil packs will help as well.


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Jan 24, 2009 at 10:35 AM
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