Question about 2000 Chevrolet S-10

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RAN RUFF AT FIRST LIKE IT WAS LOADING UP REAL BAD THEN IF YOU HELD IT TO THE FLOOR IT WOULD SMOOTH OUT BUT BLACK SMOKE IN THE PROCES, COULDNT FIGURE IT OUT SO IT WAS PARKED FOR 6 MONTHS, NOW TRYIN TO SELL IT AND IT WILL START EVER ONCE IN A WHILE AND IDLE RUFLY THEN CUT OFF IN ABOUT A MINUTE GIVE IT GAS AND IT GOES DEAD RIGHT THEN,IT HAS A GAS SMEELL IN OIL IS IT FLOODING WHAT COULD CAUSE THAT??

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Sounds like u have a injecter stuck open dumping fuel in a cylinder thats why u have gas in the oil,need to check the injecter with a pulse light.turn on the switch plug up the pulse light it should blink for three seconds an go off if doesnt pulse then u have a bad pcm just had the same problem on a 2000 s10 2.2

Posted on Jul 31, 2010

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Sounds like the fuel pressure regulator has a broken diaphragm in it, or the fuel return line is restricted. The regulator is a silver thing on the fuel rail on the top of the engine, it has a vacuum line going to it. First make sure this line is not broken, if it is okay, use a hand vacuum pump to put vacuum on the regulator. The regulator should be able to hold vacuum, if not then you will need to replace it, if it does you will need to check the fuel return line for a kink or restriction.

Posted on Jun 04, 2010

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