Question about 2003 Mercury Sable

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I just changed the spark plugs and wires and it ran relatively ok but just yesterday it started to miss. Do I need to replace the distributor cap and timing?

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I would remove the cap and look at the inside for any burn marks or cracks. I would check to make sure all the plug wires connectors are seated on the plugs. Has the fuel filter been replaced lately? I see alot of them over looked. The timing is controlled by the computer.

Posted on Nov 08, 2010

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