How do you replace thermostat on 1993 ford ranger 2.3L?
Follow the upper radiator hose from the radiator to the engine.
The thermostat is located within the housing where the radiator
hose connects tot he engine. Drain radiator, remove hose from
thermostat housing, remove the bolts that fasten the housing to the
engine and pull off housing, pull out thermostat noticing the
direction it is pointing. Installation is reverse of removal
(making sure thermostat is facing in the right direction). Refill
radiator with 50/50 water/antifreeze solution.