Question about 2003 Ford Taurus

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New spark plugs. Runs like ****. Ran fine before

Just put new plugs in 2003 taurus. Immediatly afterwards car runs like ****. Bogs down when you step on the gas. Can get up to speed but very slowly. Checked to see if I dislodged a vacuum line, couldnt really tell. Feels like vacuum leak. can anyone help?

Posted by Ben S. on

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  •  Ben S.
    Ben S. May 28, 2009

    carbon deposits covered tip on hardest to reach plug. Caused plug to crack causing arch from jacket to head. thanks for all the suggestions guys, much appreciated.

  • Greg Bernett
    Greg Bernett May 11, 2010

    Awesome!!!! Great info for others!!!!

  • Greg Bernett
    Greg Bernett May 11, 2010

    Did you disconnect all the plug wires at the same time?



    Also, what type of plug did you install?

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frank thomas wilson

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Check to see if one wire one is bad or not making contact

Posted on May 22, 2009

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If that is your only transportation you need to call other repair shops. Find out about towing fees and what diagnostic fees they have.

Before there were diagnostic scanners, there were Mechanics. Scanners come in all types and some will suggest possible solutions and others are tools which Mechanics use to find problems.

For instance, you are told you have fuel pressure. You are told they installed new spark-plugs. You were not told if the spark-plugs are getting electricity to fire. You were not told if the fuel injectors are getting electricity to allow gas to reach the cylinders. You can have fuel pressure but the fuel injectors must open to put gas into the engine.

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It is questionable whether new spark plugs were needed if installing them had no effect. Check other service places.

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