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2002 Dodge Ram 1500 Question: check engine light came on,code reader says misfire on #3 cylinder

 

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Visitor, West Monroe, LA, April 19, 2011, 14:33

I had my plugs changed about two months ago because I noticed a slight miss.NOW MY CHECK ENGINE LIGHT IS ON AND CODE READER SAYS MISFIRE ON #3 CYLINDER STILL HAS SLIGHT MISS ESPECIALLY WHEN YOU FIRST START THE ENGINE.ANY IDEAS WHAT COULD BE THE PROBLEM??

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  • Answer #1

    April 19, 2011, 14:34
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     Master

    i would look at the wires, cap and rotor. all these are bascis of a complete tune up.

    this is a good start before talking about injectors or something else.

    thanks for using repairpal

    Roy

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    Visitor, April 25, 2011, 12:48

    2002 dodge does not have distributor cap,rotor, or plug wires. I have changed plugs and replaced the coil pack on #3 cylinder to no avail.

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    mastertech6371, April 25, 2011, 13:28
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     Master

    which motor?? 3.7, 4.7 or 5.2

    Roy

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    Visitor, April 26, 2011, 05:46

    the 4.7 litre engine. I have 90,000 miles on the motor but it does'nt use any oil or run hot also there are no ticks or knocks in engine.

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    mastertech6371, April 26, 2011, 07:42
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     Master

    the codes that are displayed are a best guess estimate of the missfire. it may be another coil that is missfiring..
    i suggest a shop to test all coils for failure to be sure of the problem.

    Roy

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