Lmm Duramax Coolant Hose Diagram Jc1843. 18259 posts · joined 2008. #6 · nov 30, 2016. check with your local part store the may have a coolant pressure tester you can rent borrow so you can pressurize the cooling system that will help you locate the leak. of course you may have to take the air cleaner tube and other items so locate it. Very detailed step by step video on how to drain the cooling system and replace the upper and lower radiator hoses and refill the cooling system. this was do.
Coolant For Duramax Diesel Along with $50 in coolant. downerrr. with the front off (for the water pump), the other hose you'll want to replace is the short cross over piece (bulk heater hose), down below the t stats. easy as pie when it's tore apart major pia to get to, all assembled, on the side of the road, when that one blows. Check out the coolant hoses & pipes from xdp to find the hoses your 2007.5 2010 chevy gmc 6.6l lmm duramax needs. check out the upgraded hoses, pipes, and connectors to replace failure prone components on your truck. find factory style replacements or heavy duty options to replace the failed components in your cooling system. At 185* secondary t stat starts to open flowing more to the radiator. in here @ arond 132* the turbo starts recieveing coolant through a thermo controlled circuit by pass. at 203* the primary stat is full open. at 212* the seconday stat is full open, all coolant is through radiator and flow is near 80 gpm. Remove thermostat housing. fill system with 3 gal of dex cool comparable coolant through the de gas tank. continue to fill system with distilled water until it is visible at thermostat housing. replace thermostats, but remove bleeder screw at front of housing. connect the upper radiator hose.
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