COP help
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COP help
OK, got the plugs changed out and still had a miss. Had the service engine light come on saying a miss on #2. Bought a generic COP at local parts store and seemed to cure problem. I'd like to replace all of them with OEM but I'm confused as to which COP to purchase. I've had websites say the DG-508 fits my car and then another say that DG-511 is the correct one. 2007 Mercury Mountaineer Premier 4.6. The original COP's have 3L3E-12A366-CA on them. Any help appreciated. Thanks!
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WOW, check the little things first
OK, so I had changed the plugs (4.6 3 valve) and started getting a miss after a couple weeks. Started throwing misfire/random fire codes. Changed out all the COP's with Motorcraft ($$) hoping to cure problam. NO, ran like crap, missing, etc. Had another CEL code on the same cylinder. Figured might as well try another plug.......BINGO!! Seems one of the new Motorcraft SP514 plugs was bad as a new plug cured the problem. Lesson learned, check the little things over again, even if they are new. At least I have the piece of mind of all new COP's as well as plugs. Glad to find the problem and get on the road again. Tater
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maldbwmjr
1997 - 2006 Expedition & Navigator
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Dec 9, 2007 07:18 PM
