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    Intermittant misfire

    We are taking out Motorcraft AGSF 22PGM original equipment (I'm told) We will be putting in Autolite Dbl Platinum APP103. I hope this works as we will be leaving Saturday morning on a 1100 mile round trip to go whitewater rafting.
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    Intermittant misfire

    With the exception of the plugs, all other problems would affect other cylinders, not just 1 and 5. I thought maybe someone would say "oh that problem, this is the fix..." I will check fuel pressure and ohms test the injectors. I'll also get a new fuel filter. Any other suggestions?
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    Intermittant misfire

    It's the consistently repetitive on and off that suggests to me that it is heat related. Something works until it overheats and cuts out until it cools off. What does that?
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    Intermittant misfire

    It has 82K on it. I know what the codes are, I think ignition, my son thinks injectors. We are going to pull and change the plugs.
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    Intermittant misfire

    I should add that we got the following codes: P0300,301,305,316.
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    Intermittant misfire

    Our 2004 ST began to misfire while going down the Interstate. All of a sudden the check engine little began blinking, the AC compressor shut off, and the engine lost 400 rpm. This lasted about 90 seconds and then all went back to normal for about 60 seconds and then repeated continually for the...
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