Misfire codes

2006 CADILLAC CTS
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MWATTERSON
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I have three missfire codes on my car 03000, 03001, and 03004,
Would changing the spark plugs fix, this?
Thanks
May 20, 2015 at 5:06 PM
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HMAC300
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not necessarily these are very hard to diagnose and a pro should do these to save yourself money. it can be a few sensors, injector, along with basic engine problems you can try but dont' count on it.
May 21, 2015 at 5:57 AM