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Duramax 6600 Discussion Forum for the Duramax 6600 Diesel Engine, including the LB7, LLY, LBZ & LMM engine specific topics.

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Old 09-06-2007, 11:10 AM
LoClass LoClass is offline
Join Date: Feb 2005
Location: Janesville, WI
Posts: 5
Default Coolant drain plugs in block?

I'm planning to flush the coolant system on my '03 LB7 and had read that there are 2 coolant drain plugs in the block. I've looked and can't seem to locate where they are? Does anyone know where they are and what they look like?

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Old 09-06-2007, 11:20 AM
More Power's Avatar
More Power More Power is offline
Join Date: Feb 2000
Location: Big Sky Country
Posts: 9,558

Check this thread....

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