How many hours does it take to replace thermostat housing?

Author: Ms. Savannah Goldner  |  Last update: Saturday, July 4, 2026

Car thermostat replacement time is 30 to 60 minutes, depending on the make of the car. It will cost you around $190 to $350, including labor. Thermostat repairs usually take more time, requiring extra time to diagnose and analyze the vehicle's thermostat. It can take up to 2 hours.

How long does it take to change thermostat housing?

This task requires some experience, uses basic tools, and will take two to three hours, depending on your model.

Can you drive with a bad thermostat housing?

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 does it cost to replace a thermostat housing?

The average cost for a Thermostat Housing Replacement is between $506 and $550. Labor costs are estimated between $134 and $169 while parts are priced between $373 and $382.

What causes a thermostat housing to go bad?

Mainly age and corrosion are the culprits. Failure of parts falls closely in line with the aforementioned reasons. But, WHAT causes this? Heat, lack of coolant in the mix/ratio of coolant vs water and possibly a defective manufacture of thermostat.

How To Install Replace A Thermostat

Is thermostat housing leak serious?

If the housing is leaking to the point that the coolant gets low, it doesn't take long to cause some serious damage. Low coolant warning light – The low coolant warning light on your dashboard may switch on if your coolant level drops below the normal range due to a leaking housing.

How do I know if my house thermostat is bad?

7 Ways to Tell Your Thermostat Is Broken
  1. The Thermostat Has No Power. ...
  2. The AC or Furnace Won't Turn On. ...
  3. The Heater or AC Won't Turn Off. ...
  4. The Thermostat Reading Doesn't Match the Room Temperature. ...
  5. The Thermostat Doesn't Respond. ...
  6. The HVAC System Is Short Cycling. ...
  7. The Thermostat Forgets Programmed Settings.

Can I replace thermostat housing myself?

Replacing an analog or digital thermostat is one of those DIY projects you can do yourself. Analog thermostats are easier to install but digital ones offer more advanced features, such as programmable settings.

How much do contractors charge to install thermostat?

The cost to install a thermostat is $182 on average, but you could pay between $113 and $264. Thermostats play an important role in our daily lives, cooling us down during the sweltering summer heat and keeping us warm and cozy during winter. While the average cost to install a thermostat is $182, pricing can vary.

How long does a car thermostat housing last?

A car thermostat is designed to last a long time – typically around 100,000 miles or 10 years. However, various factors can impact its lifespan. First, driving conditions play a role. If you regularly drive in hot weather or stop-and-go traffic, your thermostat may suffer additional stress.

How does a car act when the thermostat is bad?

You Notice Erratic Temperature Changes

If you notice sudden and erratic temperature changes from cold to hot or hot to cold, then it could be a sign that your thermostat has stopped working correctly. Get your vehicle inspected if you notice these extreme temperature changes in your vehicle interior.

Why would a thermostat housing need to be replaced?

Although you can drive your car with a damaged thermostat housing, we do not recommend you do so. The housing is a critical component that helps keep the engine cool. If it fails, your engine can overheat and experience complete failure.

Can I still drive my car with a P0128 code?

Although it may be possible to drive short distances with code P0128 set, you should get the issue fixed by a professional right away. Doing so will help ensure your vehicle keeps running at its best while also helping to prevent any additional damage.

How do you know if you need a new thermostat housing?

7 Signs You Need to Replace Your Thermostat
  1. Your HVAC Keeps Turning On or Off. ...
  2. Faulty Thermostat Readings. ...
  3. Suspiciously High Energy Bills. ...
  4. Constant Temperature Shifts. ...
  5. Thermostat Is Too Old. ...
  6. Thermostat Fails to Respond to Changed Settings. ...
  7. Your HVAC System Short Cycles.

What is the code P0128?

Error code P0128 indicates that your engine coolant temperature is below the thermostat regulating temperature. This means that your Engine Control Module (ECM) or Powertrain Control Module (PCM) has recognized that your engine is running cooler than it's supposed to.

Is it a big job to move a thermostat?

If you're moving your thermostat to a different room, however, you'll likely need the aid of a professional HVAC technician. They'll have to run a new set of control wires from your HVAC system to where you'd like your thermostat to be situated.

Can a handyman replace a thermostat?

In many cases, installing a basic thermostat can be a DIY project for those with some electrical knowledge and experience. However, if the installation involves wiring or electrical systems beyond your expertise, it's best to leave it to a licensed electrician to ensure safety and proper functionality.

How much do mechanics charge to change thermostat?

Car thermostat replacement time is 30 to 60 minutes, depending on the make of the car. It will cost you around $190 to $350, including labor. Thermostat repairs usually take more time, requiring extra time to diagnose and analyze the vehicle's thermostat. It can take up to 2 hours.

How much labor does it take to install HVAC?

The labor cost to install an HVAC system is $1,000 to $3,000, depending on the home size, furnace and AC unit type and size, and installation complexity. HVAC labor rates are $75 to $150 per hour.

How long does it take to fit a thermostat housing?

On average a car thermostat replacement will usually take around 1 hour, but can take anywhere from under 1 to over 2 hours. In some cases, it can take longer if it has resulted in a blown head gasket which will also need replacing.

How often should thermostat housing be replaced?

Modern home thermostats tend to have about a 10-year lifespan but are usually replaced sooner due to innovations in the market. Non-programmable thermostats have become outdated and replaced by programmable (or learning) thermostats.

What tools do I need to replace thermostat housing?

TO REMOVE AND INSTALL A THERMOSTAT, YOU WILL NEED:
  • A clean rag.
  • New thermostat.
  • Gasket and gasket sealant.
  • Screwdriver or pliers.
  • Small socket wrench.
  • Small adjustable wrench.
  • A small scraper or wire brush.
  • 9 L bucket or drip pan.

What is the life expectancy of a home thermostat?

On average, most thermostats last about 10 years, depending on the model, usage, and proper maintenance. However, many people decide to replace their unit sooner to take advantage of new energy-saving technologies.

Will you get a code if your thermostat is bad?

P0128: Coolant Thermostat Temperature Below Regulating Temperature. When your check engine light is illuminated due to trouble code P0128, you may have an issue with your engine thermostat.

What does short cycling mean?

In the heating, ventilation, and air conditioning (HVAC) business, short cycling is a phrase used to describe when a heater or air conditioner cycles on and off too frequently. It signifies a problem in your heating system's proper functioning and efficiency, in which it is not completing its heating processes.

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