When changing the thermostat on a Nissan 300zx first drain the coolant from the engine. Then find the lower coolant hose on the radiator. Trace the hose to the thermostat housing. Remove the housing to uncover the thermostat and replace the unit with a new thermostat.
On my 93 the thermostat is behind the water pump. If you remove the waterpump you will see the thermostat.
To install a thermostat on a 1987 Nissan 300ZX, remove the two nuts and one bolt on the lower water neck. Slip off the old thermostat and use a gasket sealant to secure the new thermostat.
In the thermostat housing on the front of the engine were the radiator hose attaches
water pump
You'll have to take off the water pump because that is where the thermostat is.
Should be a removable housing at the engine end of the upper radiator hose
should eather be at the top in to engine or on bottom hose coming from engine
Easy
the main hose coming off the top of the radiator were it goes int0 the engine.
Low coolant? Control cable not adjusted properly Bad thermostat?
change thermostat
Where is the thermostat on a 1997 chevy suburban and how do you change it?