Where is the thermostat valve located?

Locating the thermostat In most cars the thermostat is placed under a housing near the water pump on the cylinder head ; the housing is connected directly to the top radiator hose . In a few cars the thermostat is housed near the bottom hose. Test the thermostat quickly by starting the engine from cold.

What does the thermostat do on a 1998 Cavalier?

The 1998 Chevrolet Cavalier uses a thermostat to regulate the coolant system. The engine temperature in the Cavalier will rise during operation of the engine. The thermostat opens to release coolant into the engine to lower its temperature.

Where is the radiator hose on a Cavalier?

If you’re not sure, look where the radiator hose connects to the intake manifold of the Cavalier. The part that the hose connects to is the thermostat housing. Loosen the clamp that holds the hose to the housing with a screwdriver. Pull the hose off the intake manifold.

How do you change the thermostat on a radiator?

Follow the upper radiator hose to the thermostat housing. Unscrew the two 8 mm bolts on the housing. This will separate the housing, revealing the thermostat. Clean the two surfaces with a razor scraper. Ensure all the gasket material is cleaned off. Replace the old thermostat with the new one.

Why does my Cavalier engine keep getting hot?

The engine temperature in the Cavalier will rise during operation of the engine. The thermostat opens to release coolant into the engine to lower its temperature. Once the temperature is lowered, the thermostat closes until the next time the engine gets hot. A faulty thermostat will stick and not release coolant into the engine properly.

What’s the best way to install a thermostat?

Place the gasket around the surface of the bottom half of the housing. Ensure the bolt holes match up to the holes on the gasket. Bolt the thermostat housing together with the socket wrench. Ensure the bolts are tight to prevent leakage in the future.