Quick Answer: Can A Bad Thermostat Cause You To Lose Coolant?

What causes a thermostat to go bad?

Once the coolant engine reaches proper operating temperature, typically 180 to 200 degrees, the thermostat opens up and allows the coolant to flow through the engine.

Sometimes the thermostat fails and must be replaced; there are four main reasons for failure: overheating, sludge, defect and age..

How much does it cost to fix a thermostat in a car?

The cost of getting a thermostat replaced in a car is about $200 to $300 on average. Of course, this will also greatly depend on the make, model, and year of the vehicle that you’re driving.

Can a bad thermostat cause a blown head gasket?

Yes, that happens all the time. If you drive even for a few minutes with the engine overheating, it is quite possible to blow a head gasket. … A bad thermostat that doesn’t open and therefore doesn’t send coolant to (and through) the radiator, can cause overheating, which may result in head gasket failure.

Can a faulty thermostat cause coolant loss?

Another indication may also be leaking coolant which can be caused by the thermostat not allowing coolant to flow when it is stuck in the closed position. … This can eventually cause other coolant hoses to leak as well resulting in coolant often times leaking on the ground under your vehicle.

Why does my engine coolant keep disappearing?

Coolant leaks can also happen inside your car. … If you have ever found your vehicle missing coolant with no visible leak on the ground or on or around your cooling system, the problem could be a worn out radiator cap, which allows coolant to actually escape while you’re driving.

What are the symptoms of a bad home thermostat?

Whether it’s winter or summer, a malfunctioning or non-functioning thermostat can cause you a lot of headaches:Inaccurate temperature readings.Low battery warning failure.Malfunctioning furnace, air conditioner or total HVAC system.Poor interior temperature control.Lighting and energy efficiency issues.

How do I know if my thermostat is working?

The most common signs of a broken thermostat are:Thermostat display is off or is non-responsive.Turning on the heat or AC does nothing.The heat or AC will come on, but either stays on nonstop or cuts out before the temperature setting is reached.

Is it OK to drive with a bad thermostat?

Technically, yes, but you really shouldn’t. With out a functioning thermostat the coolant can’t circulate so your car will quickly overheat. It does depend on the make and model but even overheating for a short time can have pretty devastating effects on an engine.

How much should it cost to replace a thermostat in a car?

You will pay between $150 and $200 to have your thermostat replaced. The labor should be around $125, while parts should cost you, on average, about $45.

What happens when car thermostat goes bad?

A bad thermostat can cause the car to swelter, as the thermostat is a heat-sensitive control device situated at the radiator hose. … If the thermostat is stuck closed, antifreeze won’t flow from the radiator, resulting in the car overheating. Thus, if this happens, one of the possible causes is a broken thermostat.

How do you know a thermostat is bad?

4 signs your thermostat is badSign #1: Your thermostat has no power or is unresponsive. … Sign #2: Your heater or A/C won’t turn ON. … Sign #3: Your A/C or heater runs constantly and won’t turn OFF. … Sign #4: Room temperature and setting don’t match. … Step #1: Make sure thermostat is on the right setting.More items…•

Why is my car losing coolant but not overheating?

If you’re leaking antifreeze but not overheating or you have a car leaking antifreeze when parked, you still have a chance to repair your vehicle for a lower cost. … Chances are you have either a radiator cap leak, internal coolant leak or an external coolant leak.