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  1. Cold Knock / Tap

    4.7L PowerTech V8 Specific Topics
    2008 Ram 1500 4.7 every morning cold outside or not my truck taps until it is up to operating tempature. It became so annoying to me I decided to investigate the tap. I removed the brake booster and disconnected various connectors to be able to access the drivers side valve cover. Once the valve...
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