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Where does the coolant leak from a car thermostat?

Where does the coolant leak from a car thermostat?

Coolant leaks around the thermostat housing or under the vehicle. This can be noticeable in a variety of locations, but most commonly around the thermostat housing. This can eventually cause other coolant hoses to leak as well resulting in coolant often times leaking on the ground under your vehicle.

Why is the thermostat on my car stuck open?

If the temperature does not rise by much, your thermostat is stuck open. If the radiator hose remains about the same temperature, but the dashboard gauge rises dramatically, your thermostat is stuck closed. If the upper radiator hose rises to about the same temperature as the engine block, your thermostat is allowing the coolant to flow properly.

What happens if you replace your car thermostat?

It can eventually cause other coolant hoses to leak as well, often resulting in coolant leaking on the ground under your vehicle. Thermostat replacement is a fairly inexpensive repair to make to your vehicle, preventing potentially thousands of dollars in engine damage due to excessive heat.

Where does the radiator hose attach to the thermostat?

The upper hose attaches from the top of the radiator to the top of the engine at the thermostat housing. The lower hose attaches from the bottom of the radiator to the water pump of the engine. If you suspect either radiator hose is failing, watch for the following symptoms: 1. Leaking coolant

What causes coolant to leak from the thermostat?

Coolant Leaks Around Thermostat Housing or Under Vehicle This can be noticeable in a variety of locations, but most commonly around the thermostat housing. It can eventually cause other coolant hoses to leak as well, often resulting in coolant leaking on the ground under your vehicle.

What happens if your car thermostat is stuck closed?

Learn more… Your vehicle’s thermostat opens to allow coolant to flow through the radiator and cool the engine down. However, if the thermostat gets stuck in the closed position, the coolant can’t flow through the radiator and can make your engine overheat.

What to do if your thermostat housing is leaking?

Set the shifter in park, for an automatic. Locate your thermostat housing by following the upper radiator hose to the engine block. Spray the thermostat mounting bolts with penetrating oil and let it soak for 15 minutes. Place the thermostat housing upside down in a bench vice.

What are the symptoms of a bad thermostat?

The continuous closure of the thermostat along with the pressure acting on the coolant can result in coolant leaking around the thermostat housing. In more serious scenarios, the coolant might leak from both hoses surrounding the radiator. Other broader symptoms that you might experience if you have a bad thermostat might be:

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Ruth Doyle