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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    i was under my back seat screwing around with my system and i unscrew the red terminal and it sparked and now eveyrthing runs like **** it dont shift it almost stalls all the usual symptones like eveything so i brang it to dealer they said spark pluags fould up do to coil pack or sumtin they...
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