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Multiple misfire code 2004 civic 1.7

Johnny w

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I would check for a leaking Head Gasket. A lot of the Civics with that engine develop a leaking head gasket at higher mileage. The engine can leak coolant into the cylinders overnight and on initial startup it can "lean out" a cylinder causing the codes to be set.


be sure to check for a low coolant level in the radiator when its a cold engine. NEVER open a HOT radiator cap!




hope this helps



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