4cyl top 2cyl?
follow your top radiator hose to your intake,its in their.
I have a 1997 Nissan 2wd pickup with an automatic transmission and 4 cylinder. The thermostat is located on the lower radiator hose under the power steering pump.
A diagram of the thermostat location on a 96 Nissan pickup can be gotten from the Nissan dealership. It can also be purchased from most auto parts stores.
below the raditor hose that's connected to the thermostat.
Look in a removable housing at the engine end of the upper radiator hose
follow the top radiator hose
It is bolted to the bottom of the throttle body.
Follow your top radiater hose,its inside the thermostat cover,2 bolts hold it on,put the new one in the same way as the old .
To replace the thermostat on a 1987 Nissan pickup, drain the radiator. Locate the thermostat which is under the top hose assembly, and remove the screws holding it in place. Put the new one in position and refill the radiator.
follow your top radiator belt,its inside the thermostat cover.2 bolts hold it on.
I don't own a 1993 Nissan Pickup Truck, stupid! check your thermostat to see if it opening
Need to know your engine size in order to anwer your thermostat problems.