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1999 dodge caravan 3.3 no spark - Caravan Dodge Cars & Trucks

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  • abmail7 May 09, 2010

    Thank you. Although both were replaced as a means to find the issue and still no spark. I'm thinking ecm but had hoped for any other, cheeeper, solutions. Got any others?

  • abmail7 May 09, 2010

    Ok thank you I guess the next solution would be to buy the ECM and hope that does it. Ann.

  • abmail7 May 10, 2010

    we tried the coils but they did not fix so we took them back. would you have the wiring diagram for the ecm or know where i could find this? thanks sorry i did not let you know about the parts ahead. ann

  • abmail7 May 10, 2010

    thanks we did change both the sensors. the problem now is the codes do not flash. think it is the ecm but need the wiring diagram for this to track it properly.

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  • Dodge Master
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See if you can get the codes read,to narrow the problem down,but,I suspect the cam sensor ,or the crank shaft sensor.

Posted on May 10, 2010

  • Ronny Bennett Sr.
    Ronny Bennett Sr. May 10, 2010

    Make sure to check for a fuse that maybe blown,then you are most likely correct about the ecm.

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  • Master
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These vans had problems with the camshaft and crankshaft sensors. I'm pretty sure a bad crankshaft sensor will prevent any spark at all so I'd replace that first. Even if you replace both, they're due and you'll prevent future problems. The crank sensor is mounted way down at the back, between the engine and transmission. It's held in with one little bolt, just undo it, disconnect it, and slide it out. To install it, you just slide it in but you need to leave the thickness of a paper match between it and the gear that it senses. A good method to achieve this is to just glue a strip of a paper match on the end of it and insert it until it gently bottoms. The match piece will not interfere with it's operation and just fall off in time. I'll get the exact location in a minute and post back to you.1999 dodge caravan 3.3 no - 91cdee1.jpg

Posted on May 09, 2010

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  • Dave  C
    Dave C May 09, 2010

    OK, it's right at the back of the engine, actually mounted in the transmission bell housing, just above the differential where the axles come out of the transmission. The new sensor may already have a piece of cardboard glued to it, if so, no need for the match.

    Hope this helps, Dave


  • Dave  C
    Dave C May 10, 2010

    I guess it would have been nice to know which parts you had replaced before I answered you're question. I should have asked. Have you tried a new coil pack yet?

  • Dave  C
    Dave C May 12, 2010

    Have you checked power to the coil pack? You may have a bad fuse (#17) or Auto shutdown relay.





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