Question about 2001 Ford F150 Styleside SuperCrew

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2001 Ford F150 V6, Truck started spitting and sputtering and check engine light turned on. Originally I thought that I had a fuel problem and maybe needed a tune up so I put new plugs and wires and all new filters, none of these fixed the problem. I hooked up a code scanner and it told me system lean Bank 2. I changed out the O2 sensor and still the same. Could the miss and the system lean code be coming from a faulty injector on bank 2 or could something else be causing this.

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  • Robert Gurka Jul 20, 2009

    I thought that maybe a bad coil pack would cause the problem so I changed it and the code and the miss continue to occur. I asked a ford mechanic friend of mine and he seemed to think that a missfiring coil would trigger a system rich code due to the unburned fuel. The only other thing I could think of is a misfiring injector but I think that either way weather a coil pack or injector missfire it should still trigger a cylinder misfire code.

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I know that the 5.4l are known too misfire if you wash them because the water runs down between the coil and the heads. pull all your coilpacks and check for rust on the spring in the boot and use compressed air to blow any exessive mosture out of the coil to plug area.

Posted on Aug 14, 2009

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Check your ignition coil. If faulty, It may cause intermitted misses and therefore may cause excess unburnt gas i.e. lean mixture. Hopefully this helps

Posted on Jul 20, 2009

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