Can You Drive With A Faulty Thermostat?

How long can you drive with thermostat stuck open?

Open is fine as others have stated, the only thing is that since your car will not reach the ideal operating temp, (yes, you can overcool a car) your gas milage will take a hit becuase the ECU thinks the engine is still trying to warm up.

my friend drove his car for 4.5 YEARS with stuck-open thermostat….

How much does it cost to replace car thermostat?

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 causes a thermostat to fail?

There are two scenarios for failing thermostats: … If the thermostat becomes stuck in the closed position, the circulation of the coolant is blocked so the coolant cannot get to the radiator to be cooled which causes the engine to overheat.

When should I replace my thermostat?

Signs It’s Time for Thermostat ReplacementThermostat actuates at wrong temperature. If your thermostat activates the A/C or furnace at some temperature other than the one it’s set for, the thermostat sensor is out of calibration or defective. … Rapid on/off cycling. … Functions run nonstop. … Thermostat is obsolete.

How do you test a car thermostat?

Start your car’s engine and allow it to idle. Look through the radiator filler neck to see if the coolant flows. At this time, it should not be flowing as your car has not reached the operating temperature to cause the thermostat to open. If you find the coolant is flowing, it means the thermostat valve is open.

Can u run a car without thermostat?

Generally it should be ok to drive without the thermostat fitted, as it will only cause the engine to take longer to reach operating temperature. The thermostat is designed to allow the engine to reach ideal operating temperature as quickly as possible, so it would not be recommended to drive without it.

How do I know if thermostat is stuck open?

Symptoms of a bad thermostat Thermostat stuck open: When the thermostat is stuck open, the engine temperature drops below normal when driving, especially on the highway in cold weather. A stuck-open thermostat can also cause lack of heat from the heating system. The Check Engine light may come on too.

Can a thermostat stay open?

If something goes awry in your engine, then it’s possible your thermostat can get stuck in the open position. … This is considered more desirable than feeling in the closed position because that would prevent coolant from circulating and your engine to overheat.

Is it hard to replace a thermostat?

But after a bit of research, I discovered that replacing a thermostat is pretty stinking easy. … Granted, each heating and air conditioning system will have unique requirements for connecting a new thermostat, but the general process is pretty much the same. Consider this your big picture guide through the process.

What will happen if you drive a car without a thermostat?

If you drive without a thermostat, your engine will never reach its optimal operating temperature and your heater may blow cold air. … It happens because driving without a thermostat tricks your engine into thinking it is cold outside, causing it to adjust the gas mixing valve and push more fuel to the engine.

Who do you call to fix a thermostat?

Call Our Thermostat Experts Today at (800) 893-3523! The team of HVAC professionals at One Hour Heating & Air Conditioning provide efficient and reliable thermostat services. Whether you need assistance repairing or replacing your thermostat, our team is ready to help you.

What happens if you have a bad thermostat?

If your thermostat goes wrong, you might have severe problems in your engine that can lead to vehicle damage. Thermostat failure can happen due to many reasons, including problems with the water pump, issues with the engine’s radiator, and damages in the drive belt.

Can a stuck thermostat fix itself?

You can either replace the valves with new ones or work the valves back into a position where they can move up and down more freely. Replace the thermostat. This is the last thing you want to do, but if the hoses do not show a blockage or coolant hindrance then the thermostat itself may be malfunctioning.

How much does it cost to fix p0128?

The average cost for an engine coolant temperature sensor replacement is between $148 and $193. Labor costs are estimated between $82 and $105 while parts are priced between $66 and $88. Estimate does not include taxes and fees.

Will p0128 code clear itself?

The P0128 will clear itself after 3 trips where the Set Condition does not exist…

Will a bad thermostat throw a code?

A stuck open thermostat can cause the engine to take too long to warm up, not reach proper operating temperature at all, possibly run rich, and MAYBE set that fault code. … The oxygen sensor may not reach its proper operating temperature as well if the engine is running too cool.

How can I test my car thermostat without removing it?

How to Test a Car Thermostat Without Removing ItMake sure your engine is cold. … Start the engine and let it run until the temperature gauge starts to move. … Stop the engine and feel the temperature of the top radiator hose.If your car’s thermostat is working correctly, the hose should feel cool.More items…

How do you know if your thermostat is bad in your car?

Symptoms of a Bad or Failing ThermostatTemperature gauge reading very high and engine overheating. The first and potentially most alarming symptom will be the temperature gauge reading high into the red within the first 15 minutes of your vehicle engine running. … Temperature changing erratically. … Coolant leaks around the thermostat housing or under the vehicle.

How long can you drive with a p0128 code?

Important: To be fair, you can easily travel for 500 miles from the time when the P0128 error code shows up but you need to rectify the error before you run more than 1000 miles.