Its a mystery! Losing antifreeze on a 2006 Duramax with no external leaks!
#mechanic #duramaxdiesel #automobile #chevrolet Todays video was recorded this summer and I wanted to wait until I get the truck repaired before I posted this because I knew it would be several months before I could get to the rest of the series. Customer was complaining of losing antifreeze but had no external leaks at all. We go through all the checks that I usually go through to diagnose a problem like this. This was a 2006 Duramax LBZ.

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