2003 Ford Taurus SES Misfire only at idle

Asked by Mar 21, 2010 at 07:31 PM about the 2003 Ford Taurus SES

Question type: Maintenance & Repair

I have a 2003 Ford Taurus SES with the 24 Valve engine.  It started misfiring about a month ago and the trouble code reads cylinder #3 misfire detected.  It only misfires while idling, under acceleration there is no loss of power at all.  Driving on the highway the misfire is never felt, but when stopped at a traffic light for example you can feel it misfire, but it is still random, not constant.

I have changed the fuel filter, spark plugs, wires, and took in to have the fuel system cleaned but still it misfires when idling.   

Any suggestions or ideas?

Thanks.

1 Answer

3,835

Try swapping injectors with another cylinder. If code follows you've found your culprit. If not, check wiring to that injector.

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