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spark and fuel
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  1. 262ci Forum (4.3)
    Hi all, I am writing here because I have a problem with my 94 vortec 4.3 tbi blazer s10, I have ignition and gas but it won't start, it just makes a flame explosion when I turn on the throttle. the spark is blue so ok ignition order ok crankshaft and ignition head 1st cylinder ok coil ok icm...
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