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Hey guys.. I am a pretty new to the duramax family... I got a 2014 LML that seems to be seeping a bit of coolant out the water and that being the top rad hose is pretty stiff. Should i be concerned it also has a head gasket issue or could the water pump be causing the stiff rad hose??
 

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It's supposed to be hard when it's running.

Sit overnight to cool, then check it for firm. But if you're WP is leaking, any pressure is going to leak off.
 
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