Posted by BIG RUH on May 31, 2013 at 14:03:05 from (184.63.50.221):
I have a 1996 GMC pickup, 5.7 liter engine with throttle body.Service engine light is on. Code is PO300 random miss fire. Have driven truck with scanner hooked up and all it says is miss fire. Have good fuel pressure. Have replaced plugs, wires, coil, cap, and fuel filter. Have started getting gas for it at a different station and have put sea foam in the gas. Any that I may be missing and need to do? I use the truck to haul my tractor to shows.
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