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1990 cummins

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    '90 Cummins Sound - Non Intercooled Cummins Sound

    Hello everyone, I want to know about the idle sound of non-intercooled engines. The ones I heard sounded 'rickety' while idling. I've only heard a couple of engines - an '89 and '90 and they both sounded the same - 'rickety' Like it had some loose valves or something. Do all non-intercooled...
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