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  1. 05-24-2020, 18:17 #1
    Rnaiss
    Rnaiss is offline Newbie
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    Default 01 lb7 2500 hd coolant leak

    hey guys! Need some help. My duramax is running great but noticed a small leak at the drain plug on the oil cooler. Might be the drain plug seal but not sure. May be coming from the weep hole. No other coolant leak that I can find. Definitely slowly losing coolant. Anyone have this problem? Thanks!
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