white mark on top of my spark plug, coolant???
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Honda-Tech Member
Joined: May 2003
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From: ca, usa
white mark on top of my spark plug, coolant???
took off my sparkplug today and saw white mark on top of sparkplug cylinder 3 and 4. the plug look like it was running very rich but has a white mark on top of it. anyway i can fix this. or do i have to replace the headgasket. i am not losing any coolant, but my car seem to get hotter than normal when driving on the highway. help
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