Question about 1987 Dodge Dakota

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1987 Dakota plugs

I have 1987 dakota v6 3.9 the plugs all six got all black with carbon after 50 miles with new plugs. I clean the plugs and they are still getting black with carbon again what cause this

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  • jz24 Aug 25, 2008

    that a tough one

  • jz24 Aug 25, 2008

    I check the 02 and air filter its Ok It has a carb. on a 1987 was the last year for a carb.

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Check your 02 sensors and be sure that the air filter is clean. You also may be having trouble with the fuel pressure regulator.

Posted on Aug 25, 2008

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Hope helps' remember to rate and comment this free answer.

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1 Answer

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Have you considered the throtle body injector? If the injector is not spraying a fine mist this will cause plugs to foul out and you will get the symptom you describe. The ERG valve on the back of the motor may be anothe cause during warm up operation. These usually plug up with carbon and do not work when you 100k miles or more.

Make sure you used good quality wires and plugs (not platnium, in these ones).

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BW

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    Lugnut61

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