How do I know I need a new thermostat in my car?

Signs My Car's Thermostat Is Going Bad or Has Failed Completely
  1. Odd Temperature Gauge Readings. Your temperature gauge should register cold when you first start your car and slowly build up to normal as the engine warms up. ...
  2. Air Temperature Changes. ...
  3. Coolant Leaks. ...
  4. Strange Sounds. ...
  5. Heater Problems.
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How do you know when your thermostat is going out?

7 Ways to Tell Your Thermostat Is Broken
  • Thermostat Has No Power. ...
  • AC or Furnace Won't Turn On. ...
  • Heater or AC Won't Turn Off. ...
  • Thermostat Doesn't Match Room Temperature. ...
  • Thermostat Doesn't Respond. ...
  • Short Cycling. ...
  • Thermostat Forgets Programmed Settings.
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How do I know if my car has a bad thermostat?

Signs My Car's Thermostat Is Going Bad or Has Failed Completely
  1. Odd Temperature Gauge Readings. Your temperature gauge should register cold when you first start your car and slowly build up to normal as the engine warms up. ...
  2. Air Temperature Changes. ...
  3. Coolant Leaks. ...
  4. Strange Sounds. ...
  5. Heater Problems.
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How much is a thermostat replacement?

Thermostat Replacement Cost

The average cost to replace a thermostat in a home is $140 to $350, including the unit and professional installation. Thermostat prices range from $15 to $250, depending on the type, brand, and features. Nest thermostat installation costs $100 to $200 for labor if the unit is provided.
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What happens when you have a bad thermostat?

A faulty thermostat will result in strange temperature changes during engine operation. In this case, the thermostat will not get stuck in one position, but there will still be false readings causing control issues. The engine temperature will change unpredictably and the radiator coolant will not flow normally.
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SYMPTOMS OF A BAD THERMOSTAT



Can you drive a car with a faulty thermostat?

Can I Still Drive with a Bad Thermostat? The easy answer to this question is no. While your car may be physically able to move and get you from Point A to Point B, you will want to refrain from operating your vehicle. This can lead to more parts of your vehicle being damaged, especially if the engine is overheating.
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How much is a thermostat for a car?

The Best in Auto Repair

The average cost for thermostat replacement is between $477 and $512. Labor costs are estimated between $119 and $150 while parts are priced between $358 and $362. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.
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How do I know if my water pump or thermostat is bad?

Q: How do I know if my thermostat or water pump is bad?
  1. Engine Overheating.
  2. Temperature gauge fluctuations.
  3. Coolant leak from the front of your car.
  4. Steam coming from the front of your car.
  5. Nosey or loosen water pump pulley.
  6. Coolant leaks around the thermostat housing.
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What causes car thermostat failure?

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.
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What happens when thermostat is stuck open?

If the thermostat becomes stuck in the open position, there is continuous flow of coolant into the radiator causing the engine to run cold. Overcooled engines run inefficiently, which leads to increased fuel consumption and higher emission levels and engine parts enduring more wear.
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Can a bad thermostat cause a blown head gasket?

A blown head gasket can happen for any number of reasons, from low-quality parts to old age. One particular reason is a stuck closed thermostat that prevents the coolant flow through the radiator, causing engine overheating. The extreme heat can warp the cylinder head, which leads to a blown-up head gasket.
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How often should a car thermostat be replaced?

However, most car experts recommend car thermostat replacement after 10 years. However, this is an optimistic number. Thermostats are more likely to stop working much earlier than a decade. Some factors that induce an early thermostat failure include harsh weather, rough driving, bad engine or thermostat parts.
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Can I replace my thermostat myself?

Can I do it myself? An experienced DIY-er can install most programmable thermostats and some smart thermostats. Don't forget to turn off the breaker to the HVAC equipment!
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How much does a mechanic charge to change a thermostat in a car?

But for the average car owner, you can expect to pay between $140 and $300 for a professional mechanic to replace the thermostat in your vehicle for you. The cost of the actual thermostat unit itself is usually between $20 and $80 but can be more for luxury or sports cars.
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How long does it take to change a thermostat on a car?

It will take a mechanic between 1 to 2 hours to complete a thermostat replacement service. Depending on the shop you go to, labor can cost between $65 and $100 per hour, so call ahead to get a repair estimate.
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How long does it take to install a thermostat?

As long as the existing wiring is in good condition and has all the necessary wires, it typically takes less than an hour to install a thermostat. If wiring is required it can take a professional up to 2 hours to complete the repair and may take a DIYer longer, depending on their experience with wiring.
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How long should a thermostat last?

But, just how long will a thermostat last? They generally last about 10 years but can last longer depending on the make, model, and type of thermostat. Over time, these systems start to age and a thermostat may malfunction because of normal wear and tear, dust accumulation, wiring issues, and rusting.
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