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2005 Dodge Dakota Question: what causes rough idle then not when engine light comes on, computer issue?

 

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oldshadetreetech, 4.7L V8, Victoria, TX, December 24, 2012, 13:51
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The code indicated is misfire cyl 5 but plug has been replaced, coil pack has been replaced, EGR valve has been replaced, have gone to 2 shops, including Dodge dealer but they cannot determine problem HELP!

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    pushrod December 24, 2012, 20:47
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    With a real scanner pay close attention to the map sensor!! Yes i know, sounds crazy.

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  • Answer #2

    PARTS GUY December 24, 2012, 21:39
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    Understand something, just because the dealer sells the model doesn't mean they know how to fix it.
    What are the codes.

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    oldshadetreetech, December 25, 2012, 11:21
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    0305 Cyl 5 misfire detected - everytime

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    PARTS GUY, December 25, 2012, 13:13
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    Customer Concern:
    Engine is setting misfire codes. Has good spark and have swapped the injectors around. Compression is normal.
    Tests/Procedures:
    1. Connect a vacuum gauge. If the needle is erratic, check if an exhaust rocker arm has fallen out of place.

    2. If so, carbon build-up on the valve is the likely cause.

    You need to remove the valve cover which number 5 is and check valve train.

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    oldshadetreetech, December 25, 2012, 14:38
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    Thanks!!

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