Causes Of Spark Plug Fouling | Maintenance Minute

Is it the oil? The gas? or the coolant? Spark plugs can be the “canary in the coal mine” for underlying engine issues. Find out 3 things that can foul a spark plug and how to spot the problem with Andrew Markel in this week’s Maintenance Minute!

Denso: https://www.denso.com

Underhood Service Magazine: http://www.underhoodservice.com
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