Help newby..sparkplug color ??
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Junior Member
Joined: Feb 2006
Posts: 77
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From: kentucky
Car: 91 rs
Engine: 3.1 v6
Transmission: 700r4
Help newby..sparkplug color ??
My project car has 158k all stock 91' 3.1 .I changed the spark plugs and noticed the #2 tip was a Yellow/Orange color...the rest looked good,kinda light tan color.
What might this tell me about the engine's health??
What might this tell me about the engine's health??
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iTrader: (1)
Joined: Feb 2005
Posts: 471
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From: Frankfort, KY
Car: 81 Corvette
Engine: 355, ported vortec heads
Transmission: 700r4
Junior Member
Joined: Aug 2005
Posts: 84
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From: Mooresville, NC
Car: '91 Camaro RS
Engine: 3.1 V6
Transmission: Auto
yeah he beat me to it, here is another link that has bigger pictures. Verrill: Plug Color Chart
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