Thermostat houseing gasket?

DemonGT

Founding Member
May 24, 2002
855
49
49
Sparta,WI
have to change a leaky thermostat housing gasket ...was wondering if its required to drain all the coolant for this? or can i just remove the housing and replace the gasket with out draining?

only time iv ever taken off the thermo housing is when i already had the coolant drained for other reasons
 
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