What happens when you change the thermostat housing?

Once the new housing has been installed, the engine is started and brought up to temperature. Any lost coolant is replaced. If the thermostat is connected to the lower radiator hose, the technician will have to drain the coolant before removing the thermostat housing.

What’s the best way to replace a thermostat?

Grab your 10 mm socket and follow the fat black electrical cable running over the front corner of the thermostat housing over to the alternator. Unbolt the cable from the alternator and disconnect the other two electrical connectors. Lay it aside so that it makes as much room as possible over the thermostat housing.

Where is the thermostat housing on a car?

The thermostat housing is where the thermostat is held. It is usually connected to the upper radiator hose near the water pump, but sometimes it is on the lower hose. What are the symptoms of a bad Engine Coolant Thermostat Housing?

Can a thermostat be removed from a radiator?

If the thermostat is connected to the lower radiator hose, the technician will have to drain the coolant before removing the thermostat housing. In either case, once the coolant has been restored, any air that is trapped in the cooling system must be removed.

When do you replace the thermostat housing on a car?

The thermostat housing is replaced once the engine has cooled down completely. A technician will unscrew the fasteners that hold the housing in place and remove the old part. The gasket or sealing material is cleaned from the mounting surface, and a new seal is installed.

What is a thermostat housing assembly?

Thermostat Housing Assemblies. On most vehicles, the thermostat housing assembly contains a coolant temperature sensor and a thermostat. The assembly monitors the vehicle’s cooling system and prolongs engine life.

How do you replace an upper thermostat on a radiator?

First, use the channel lock pliers to loosen the squeeze clamp on the upper radiator hose (this is the big hose that wraps around the oil fill port and connects the radiator to the upper thermostat housing). Squeeze the clamp, pull it back, pull the hose off the housing, and lay it aside.

Where is the thermostat located in a car engine?

The thermostat in the engine is located in the path between the engine and the radiator. When the engine is cool (below normal operating temperature) the thermostat remains closed. This allows the coolant to circulate through the engine, but not to the radiator.