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  1. J

    98 Vortec 305 suddenly out of timing

    My 98 305 with 122,000 miles is acting like the timing is off. I’ve replace the cam and crank sensor. Taken out the O2 sensors I’m front of the cats to offer back pressure relief in case they’re clogged. Plugs, wires, and cap and rotor all all about a month old with 2,000 miles on them. I...
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