First, you will want to follow the top radiator hose to the point where it connects to the engine. The metal tube, or "neck" that it connects to is the thermostat housing. This housing should have two bolts. After you remove these two bolts, pull the housing off and you will see the thermostat. you may have to pry the old thermostat out, considering the gasket may be stuck. If by some chance the top radiator hose just connects to the intake or head without the presence of the thermo housing, then check the lower radiator hose. The process will be the same as for the top hose. Good luck. I hope I have helped.
There is supposed to be an engine thermostat . Do you mean that someone has removed the engine thermostat ? What year of Ford Ranger and what year ?
The thermostat is done it has to be replaced.......
yes if the motors are the same.
A 1990 Ford Ranger is OBD I / EEC IV - if that's what you are asking
location of fusable links Ford Ranger 1990 2.9
1990 ford truck no spark
The 1992 Ford Ranger 4.0 liter had a 197 * Fahrenheit thermostat from the factory
is there a picture of where the horn fuse is located on a 1990 ford ranger
spark plug gap on 1990 ford ranger 4.0?
There are several reasons why a 1990 Ford Ranger won't start or turn over. The truck may need plugs, the starter may need replaced, or the battery may be dead.
Wikipedia has a great history of the ford ranger line.