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spark plugs

150,000 MILES • V8 • 2WD • AUTOMATIC
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ESYLIVIN7117
  • MEMBER
  • 5 POSTS
what color should the used spark plugs be when you take them out
Dec 24, 2010 at 4:00 PM
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CJ MEDEVAC
  • ✓Experienced Mechanic
  • 11,000 POSTS
Normally a "Good Burn" produces a "Tan-ish" color on a spark plug, the part you are concentrating on, is the CERAMIC Part, that the Electrode protrudes from......Blacker is "RICH"----Whiter is "LEAN"----the Tan varies in shade, A Repair manual usually has photos of this

This site was recently UPGRADED, I have not explored it much....There may be pics here also..."You Tube" is a wonderful source of info also!

Let me know how this works for you

The Medic
Dec 24, 2010 at 7:41 PM
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