That vehicle is fuel injected, it doesn't have a choke thermostat.
between radiator and the block next to intake
picture of engine of 1991 ford aerostar van
On a 1995 Ford Aerostar : If it is the 4.0L EFI V6 engine ( like my 1995 Ford EXPLORER ) it has an " O " ring for the thermostat , there is no gasket But , if it is the 3.0L V6 engine I believe a thermostat gasket is used
The thermostat is located underneath the radiator hose where it connects to the engine. The thermostat regulates the engine's temperature.
On a 1994 Ford Aerostar : Follow the TOP radiator hose from the radiator It will connect to the engine cooling thermostat housing The thermostat is INSIDE the housing * on the 4.0L V6 engine the hose actually connects to a metal pipe which is part of the thermostat housing
if you remove the top radiator hose where it connects to engine, u will see the thermostat
On a 1996 Ford Aerostar : Follow the top radiator hose from the radiator to the engine coolant thermostat housing on the engine . The thermostat is INSIDE the housing * in the case of the 4.0L , the hose connects to a metal pipe that is part of the thermostat housing that is bolted to the front of the engine
Remove the top radiator hose. The thermostat is located under the hose inlet on the engine. Remove the inlet to replace the thermostat.
To replace the thermostat on a 1995 Ford Aerostar, first, ensure the engine is cool and disconnect the negative battery cable. Drain the coolant from the radiator, then remove the upper radiator hose connected to the thermostat housing. Unbolt the thermostat housing to access the thermostat, remove the old thermostat, and clean the mating surfaces. Install the new thermostat, reassemble the housing with a new gasket if needed, reconnect the hose, refill the coolant, and reconnect the battery.
On a 1994 Ford Aerostar : Follow the top radiator hose from the radiator : I know on the 4.0 liter , OHV , V6 engine , the top radiator hose connects to a metal pipe that is part of the engine cooling thermostat housing that is bolted to the front of the engine ( the thermostat is inside the housing )
In a 1992 Ford Aerostar van, the thermostat is located in the engine compartment, specifically at the engine end of the upper radiator hose. To access it, you'll need to remove the upper radiator hose and the thermostat housing, which is typically secured by bolts. Make sure to allow the engine to cool before attempting to replace the thermostat to avoid burns from hot coolant.