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Spark Plug Question

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Old Jul 22, 2010 | 11:33 PM
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Default Spark Plug Question

I pulled my spark plugs today after someone told me I may be experiencing a slight engine miss fire. Well, I pulled all plugs and found one plug caked with, what looks to be, baked motor oil deposits. Can anyone explain what is going on internally that could cause this? This is a picture of the Right Bank front #1 plug. Thanks


Last edited by khaggins; Jul 23, 2010 at 11:12 AM.
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Old Jul 23, 2010 | 02:36 AM
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Originally Posted by khaggins
I pulled my spark plugs today after someone told me I may be experiencing a slight engine miss fire. Well, I pulled all plugs and found one plug caked with, what looks to be, baked motor oil deposits. Can anyone explain what is going on internally that could cause this? This is a picture of the Right Bank front #1 plug. Thanks

if its caked with oil then its the pcv system most likely.. either directly from the pcv itself or the fresh air return line reverting.
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Old Jul 23, 2010 | 11:14 AM
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Originally Posted by 99blancoss
if its caked with oil then its the pcv system most likely.. either directly from the pcv itself or the fresh air return line reverting.
Here's a good pic of it in the original thread. Thank for the response.
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