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  1. #1

    Default I have a 2000 silverado 4.3 its missing really bad po300 showing

    I change the timing chain and gears,crank sensor but it is still missing any help would be appreciated

  2. #2


    Mine does the same but I haven't fix it yet it is the knock sensor in the intake manifold ... Idk how easy it is to fix or what it will cost to fix it but I know it is that

  3. #3


    I also believe yours has the individual coil packs. you will get misfires with that as well.
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

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