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egr issue
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  1. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    Recently changed my block heater now I see a coolant leak. Unlucky me it's not the heater. I believe it's the egr cooler. Looks like some seepage for both ends up top. The blocker plate always seemed to show sign of soot or something since the install. I would spray it off maybe once a year...
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