Question about 2000 Ford Taurus

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My 2000 taurus keeps showing a #3 misfire code P0303. I have changed plugs, wires, checked the injector etc. Clear the code and for the most part it runs fine for a week or ? then light comes on again and poor idle when cold. Found vaccum leak and fixed that? Any more suggestions. Also gives a code of 1635? Cant find that code # Thanks

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  • Anonymous Aug 09, 2008

    I think the the codes' number refers to the number assigned to the coil packs' number not the cylinder numbers. I have the duratech coil goes 465 not like cylinders 123 I had codes for 3 and 4, changed plugs and

    321 456 wires,runs fine now

  • Anonymous Mar 09, 2009

    2003 Taurus has Diagnostic code P0303

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I had the same problem on my '02 Taurus, 3.0, V-6, 24 Valve engine. I replaced the plugs and plug wires which helped the problem but did not cure it. I then replaced the ignition coil (Motorcraft part # DG-485) which solved the problem. Has been running great since then...

Posted on Mar 30, 2009

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