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i took the top plastic cover off ( the parts that says 3.3 or 3.8 on it) and cleaned the top where it seals both the metal and plastic and put gasket cememt around the orange ring gaskets and put it back together and it fixed mine. i took out the injectors and cleaned the holes also. it was one of the two

P0303 is cylinder #3 misfire.

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12y ago

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