The customer just replaced the spark plugs and still has the misfire codes. Here is how to diagnosis a misfire condition (P0300, P0301 & P0302) on a Jeep with a 4.0 liter engine.
The customer just replaced the spark plugs and still has the misfire codes. Here is how to diagnosis a misfire condition (P0300, P0301 & P0302) on a Jeep with a 4.0 liter engine.
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