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Pat
Pat 5/9/2011
2004 Dodge SX 2.0 Base 4Cyl2.0L - Engine
my car just stopped & i checked for spark & there is no spark coming from the coil, what could be wrong?
6 Answers
  • mopar
    mopar 5/9/2011
    any check engine lights on?
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  • HouseCallAuto
    HouseCallAuto 5/9/2011
    Very high probability of a bad Powertrain Control Module (PCM). A professional has to diagnose this as there is no everyday common cause of losing spark on this engine. There are a few causes and the cause most often is a bad PCM. Another cause can be a sheared off camshaft dowel pin which sends the cam and crank signal synchronization out of whack and kills spark. Other causes also but it gets too deep to explain. Read fault codes and report the codes here and it may help confirm something.
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    HouseCallAuto
    HouseCallAuto 5/9/2011
    Don't start throwing parts at it.
  • speedyb
    speedyb 5/9/2011
    try replacing the coil that might fix but not really sure
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  • yboy82
    yboy82 5/9/2011
    Sounds like a faulty coil pack. Try to check out this link http://www.automd.com/diagnose/inspection to have an idea how to check for spark in your ignition coil.
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  • Spoon Sports
    Spoon Sports 5/9/2011
    "there is no spark coming from the coil" - There is you answer :)

    OR

    If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark, the problem may be due to any of the following:

    A bad pickup inside the distributor (on engines that have a distributor), a stripped distributor drive gear (common problem with plastic distributor drive gears), broken, loose or corroded wires from the pickup to the ignition module or PCM.

    A bad crankshaft position (CKP) sensor (on engines that do not have a distributor), or broken, loose or corroded wires from the sensor to the PCM.

    A bad ignition module (on engines that have a distributor or use an ignition module separate from the PCM)

    A bad ignition coil (on engines that have a distributor and a single coil)

    A bad rotor or distributor cap (cracks or carbon tracks that are allowing the spark to short to ground)

    Faulty ignition switch.
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  • HouseCallAuto
    HouseCallAuto 5/9/2011
    The reason it is not a coil pack is because the coil pack is actually 4 coils in one. If you said that your car is missing spark on one tower then I would say coil is possible. No spark at all on any of the coil outputs is not a bad coil. The coil cost $60 to $80 bucks. The coil can be tested by using a shop level scanner actuator test to fire the coils. One thing you can do yourself is to make sure that the coil is receiving battery voltage on the DG/OR wire with the key on. You can also attach any cheap code reader to the diagnostic connector and see if any codes are stored. if any codes, repost with those codes.
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