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  1. C

    Help me I'm confused!!!!!!!

    So I have a 2009 ram 1500 with 4.7 liter I have replaced the timing chain, the cam sensor, crank sensor, 4 coil packs and 16 spark plugs and I can't get it to start It cranks backfires every few cranks but will not fire up and I don't know what's left to check I get nothing for codes that...
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