Where is the thermostat for the radiator fan on Mazda 323 1985 - 1989?
I believe you are refering to the thermal switch for the electric fan. The switch is located on the bottom tank of the radiator on the driver's side (left-hand drive), just above the drain plug. This switch is a thread-in type with two round prongs where the wires connect. To remove/replace, drain the radiator first, then using a 21 mm socket or wrench, unthreadd the switch from the radiator. There is a second switch which threads into the thermostat housing loacted on the back on the engine head. This switch is part of the emmission control system and also controls the electric fan. Before you remove or replace the radiator switch, disconnect the wire from the thermostat housing switch first, to test the rad switch and electric fan. (I had to do this job just last weekend). Cheers Malcolm
there are 2 large black hoses that come off of your radiator. the one located higher on the radiator (upper radiator hose) goes from your radiator to the thermostat housing. the thermostat housing is a metal tube that is bolted to the engine. the thermostat is located inside of the housing and can be accessed by removing the bolts
the thermostat is located on the outlet on top of the motor where the radiator hose is connected. remove the top radiator hose from the housing and there is two bolts holding the housing on the head of the motor, remove the bolts and you will find the thermostat. to replace just reverse the order in which it was taken off. hope this helps. john.
It sounds like your water pump is not circulating the water or the thermostat is stuck closed. The water pump and thermostat are at the front bottom of the engine attached to the bottom radiator hose. You may have a blockage, but that is less likely. To test the thermostat after you have removed it, drop it in a pot of boiling water and see if it opens.
Replacing a thermostat on a 1989 Audi 100 should take an estimated 15 minutes. First you will need to disconnect the radiator hose by taking off the two clamps. Then you will remove the two bolts holding the housing in place. After the bolts are removed, the old thermostat can be taken out and replaced with a new one.
The easiest way to find it is to follow the upper radiator hose from the radiator to the engine. The place it enters the engine is probably the thermostat housing. From there, you probably have two bolts to take it off. Replace the stat and the gasket. Make sure you clean the mounting surfaces well. Good luck!!!!!
it is real easy to find---first look at the water pump (under the alternator) follow the water hose to the engine block--take off the connection and there it is Not correct, follow the lower radiator hose from the radiator to the thermostat housing. 2 10 mm bolts hold the hose bib cover on, inside the housing is the thermostat.