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Question: My truck misses when it's under load.Have changed plugs and wires.

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ekjea77, 2.3L 4 Cylinder, Murphy, NC, December 07, 2012, 19:20
 Rookie

Does it mostly when under load. Thought about changing Coil now but not sure.

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  • Answer #1

    pushrod December 08, 2012, 01:32
     Master

    Plugs and wires didn't change it at all? CEL light on? You say it has a misfire under load is it jerking or hesitating?

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    ekjea77, December 08, 2012, 06:00
     Rookie

    No lights on. Changing plugs had minor improvement. It Hesitates.

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    pushrod, December 08, 2012, 06:26
     Master

    Time to start looking at fuel delivery. Check (have checked) pump pressure fuel trim MAF, o2 readings etc, can try a filter yourself.
    You will need to scan the truck maybe drive with scanner and fuel press. gauge hooked up.

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  • Answer #2

    your.mechanic December 08, 2012, 17:55
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     Master

    Possible fuel issue.

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