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Re: 2012 isb6.7 coolant leak proccedure
Posted to HD/Fleet Forum on 6/22/2018 1 Reply

I like to draw a vacuum on the coolant system, like with an airlift tool, then I use a stethoscope to listen on the cooler. If it is leaking you will here bubbles being drawn into the cooler. Must be done cold, as hot may cause coolant to create boiling bubble... Login to read more.

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