Contaminents on spark plug, need advice
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Teching In
Joined: Feb 2005
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Contaminents on spark plug, need advice I just changed my plugs today at 67,000 miles and cylinder 7 (all the way back, driver's side) had a significant amount of gunk on it. It looks like oil but smells like gasoline.
The only thing that may be tied to this is when my car is cold started, it will make a slight ticking noise until at operating temperature. I didn't recognize it until cold-starting it under 50 degrees. The colder it gets, the more prevalant the noise. This may be a seperate issue but who knows.
Sorry for the blurry image, but as you can see compared to another pulled plug at cylinder 5, the cylinder 7 plug has a lot of contaminants on it. It's more like a film around the threads, but on the top it has a black sludgy look like burnt oil does, but as I said it smells like gas.
The only thing that may be tied to this is when my car is cold started, it will make a slight ticking noise until at operating temperature. I didn't recognize it until cold-starting it under 50 degrees. The colder it gets, the more prevalant the noise. This may be a seperate issue but who knows.
Sorry for the blurry image, but as you can see compared to another pulled plug at cylinder 5, the cylinder 7 plug has a lot of contaminants on it. It's more like a film around the threads, but on the top it has a black sludgy look like burnt oil does, but as I said it smells like gas.
