On average for most vehicles, it costs about $150-$200 to replace a thermostat by itself. It can be less if combined with other services. For some specific examples of the thermostat replacement cost on some common vehicles, we are using $100 an hour as a labor rate:
How much does it cost to replace a thermostat on 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.
What happens when car thermostat fails?
By keeping coolant from entering the engine, the engine will overheat. If a thermostat fails as it is stuck partially or completely open, the vehicle may be unable to reach its full operating temperature, which uses more fuel and can prevent the cabin heater from reaching full heat.
Does a bad thermostat affect air conditioning in CAR?
Under most circumstances, a bad thermostat will not have any effect whatsoever on the air conditioning system. A stuck-open thermostat will constantly send coolant through the radiator to cool, meaning that the coolant -- and thus the heater -- may never reach its full operating temperature.
Related Question how much does a thermostat cost for a car
Why is my car running hot but not overheating?
As a general rule, you can say your car is running hot but not overheating because of a problem with the cooling system. Cooling system problems include a failing water pump, low coolant level, old coolant that is no longer effective, a faulty engine coolant thermostat or a faulty auxiliary fan.