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International Automotive Technicians Network
Re: Duramax coolant temp sensor
Posted to Technical Discussion Forum on 11/21/2012

Can't help with pics of the CTS, but Scott has your back on that.

On the filter housing, pump the "bulb" on the top of it several times, maybe 15-20 if you replaced the fuel filter (a good idea). DO make sure the priming bulb moves freely, and visually chec... Login to read more.