2001 Dodge Durango Smoked spark plugs

2001 DODGE DURANGO
61,000 MILES • V8 • 2WD • AUTOMATIC
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BANDOLERO584
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When I buy this vehicle I change the spark plugs. 3 days ago a check engine code came up. I found spark plug #7 totally smoked and I put a new one. The truck is running witoth a problem but the check ligth came up again. I went spark plug after spark plug and all 8 are smoked and a silly smell came from the vehicle. The truck is running fine thats why im confused. Any help?
Oct 12, 2008 at 9:09 AM
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MERLIN2021
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Smoked? This means what? Melted electrodes? Black in color? What is the condition? Dodge recommends replacing with Champion of the same numbers...No fancy stuff like platinums, or the like. Gap is important too, that info is on the V.E.C.I. label, (white) under the hood.
Oct 12, 2008 at 9:23 AM
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BANDOLERO584
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not melted only covered in a film of black deposits. I replace the sparks with the original ones. nothing fancy.
Oct 12, 2008 at 9:59 AM
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MERLIN2021
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Gap is important, you are running a bit rich for the black sooty appearance, check fuel pressure and injectors, also the MAF may be dirty, this controls injector pulse width(opening duration).
Oct 12, 2008 at 10:23 AM
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BANDOLERO584
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For the benefit of this forum the the problem was the #1 block oxigen sensor. Thanks
Oct 16, 2008 at 4:40 PM