Where is the thermostat located on a Nissan Sentra?
Follow the bottom hose to the thermostat housing on the front
side of the
engine. There should be two 10mm bolts. remove the bolts, pop
the cover off, and
remove the old thermostat. Scrape the old Gasket off, if any.
Then reverse the
procedure, putting the new thermostat in. As an added
protection, you may want
to lightly dab some red RTV, where it is medal to medal.