Volvo S60 & V60 The mid level Volvo sedan and wagon that offer power, performance and an exciting ride.

Yellow dust in spark plug terminal

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Old May 24, 2010 | 07:47 PM
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Iggyomega's Avatar
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Default Yellow dust in spark plug terminal

Hello,

I changed the spark plugs over the weekend on my 2004 S60, and I noticed that terminal #3 was covered in yellow dust/powder. The other four terminals were completely clean, though.The car ran fine before and after changing the plugs--it was just time. Would you say that this is an overheating issue? If so, would you think that the car might be to blame, or would it likely be that the plug was going bad?
 
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Old May 25, 2010 | 08:30 PM
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tech's Avatar
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The coil might be going bad depending on the milage.
 
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