The purpose of the thermostat in your vehicle is to regulate the temperature of the vehicle so that it remains at a desired level.  To do this it controls the heating and cooling mechanisms and controls the flow of heat that goes throughout the system.  The thermostat manages the coolant amount in the internal combustion engine.  You will find a thermostat in any liquid cooled engine.

If you’re thermostat isn’t performing correctly it may be for a few reasons.  First, if the water pump in the car is failing then the thermostat will be affected.  The thermostat can also be affected if the engine is overheated or there is coolant leaking.

You should have your thermostat checked out by your mechanic regularly.  It holds a key position in cooling your engine, so it should be replaced every few years.

Failing to replace your thermostat when it should be could give you additional problems, such as a knocking noise with acceleration, emission problems, and poor fuel-efficiency.  Unfortunately, you never know when car problems will arise, which is why you should have your vehicle serviced regularly and purchase an auto warranty for peace of mind.