Question about Dodge Caravan

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Engine idles roughly- seems to be missing OBD2 code reads PO 303 and check engine light flashes this on a 2003 Dodge Caravan 4 cyl engine

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  • Dodge Master
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Check spark plug and ignition wire on #3 cylinder (count from front of engine. If plug and wire good, do compression test.

Posted on Sep 03, 2010

  • chaka91872 Oct 07, 2011

    maybe you should check your injectors ,normally a bad injector causes iddle problems

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I2003 Chrysler Voyager check engine light came on the car lost power, stuttered, rumbles, misses and smells of unburnt gas misfire on 2 changed all plugs, wires, coil pack, wiring harness to inj, ecm.


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new spark plugs basic tune up this will fix it ,then fine the small vacuum leak fix it this should take care of it.

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You are experiencing a secondary ignition miss fire.The most likely cause would be one or more spark plug wires breaking down .If you can go to a Autozone parts store they can check the codes for free .PO 301 to PO 306 codes would be miss fire codes.:)

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Need Help VolksWagon 2000 Jetta 2.0 DTC codes PO-300 PO-302 PO-30


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2003 dodge caravan


To check the code for the engine light without OBD tools for dodge caravan is to switch on the key 3 times without starting the car and you will see the code displayed on the Odometer display. Then check for the document what king of engine problem for that code.

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