keithb5555 1/25/2013

2005 Ford F-250 Super Duty FX4 8Cyl6.0L - Engine

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MY TRUCK RUNS VERY ROUGH WHEN COLD AND GETS BETTER ONCE WARMED UP, BUT STILL HAS A POP SIMILIAR TO A MISFIRE.

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  justwrenchitt 2/15/2013

  6.0 have injector issues. Sounds like a injector has or is failing. For most 6.0 they very rarely turn the check engine lite on even if a problem is detected. I do not have a answer for this however with a good scanner it will comunicate through both the ford and international computers and tell you. Many 6.0 if the injector is working at all will never throw a code. The best way to find faulty injector is 1 due a cylinder balance test. 2 with a good scanner you can turn off the injectors 1 at time and listen for the 1 that makes little or no difference

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