spark plugs

2009 FORD MUSTANG
52,000 MILES
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ARTURO89
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I put ngk spark plugs 1 week ago in my car and now the check engine is on my dtcs say multiple misfires... Do u think.it could be that those spark.plugs are not good for the car??? I always used motorcraft
May 13, 2013 at 6:37 PM
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ASEMASTER6371
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yes, why did you use ngk if you always use motorcraft??

Roy
May 13, 2013 at 7:29 PM
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ARTURO89
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Thay told me at the autozone that those were better... Why is it that it misfire does the.spark.plug really make a difference??
May 13, 2013 at 7:51 PM
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ASEMASTER6371
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yes it makes a difference. go with your gut. autozone employs parts salesman not technicians.

roy
May 14, 2013 at 6:49 PM