Readers ask: How long can a car run without a thermostat?

What happens if I run my 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.

Can you drive a car without a thermostat?

Most automobile mechanics will tell you it is not a good idea to drive your car without a thermostat installed. If your thermostat becomes stuck in the closed position, though, this will cause your engine to overheat and make driving your car impossible.

Is a thermostat necessary in a car?

Your car thermostat is an important part of your cooling system. As the coolant gets hotter, the thermostat opens, allowing coolant to flow through to the radiator to be cooled. The thermostat then opens and closes to keep the engine within a certain temperature range.

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What is the effect of removing thermostat from a car?

Removing the thermostat will simply make the engine over cool, which is bad. It will increase fuel consumption, as the engine CTS (coolant temperature sensor) will assume the engine’s not up to normal operating temperature, and simply inject more fuel in.

What are the signs of a bad thermostat?

There are several common symptoms associated with a bad or failing thermostat that will alert you that service is due.

  • Temperature gauge reading very high and engine overheating.
  • Temperature changing erratically.
  • Coolant leaks around the thermostat housing or under the vehicle.

How do you know a thermostat is bad?

4 signs your thermostat is bad

  1. Sign #1: Your thermostat has no power or is unresponsive.
  2. Sign #2: Your heater or A/C won’t turn ON.
  3. Sign #3: Your A/C or heater runs constantly and won’t turn OFF.
  4. Sign #4: Room temperature and setting don’t match.
  5. Step #1: Make sure thermostat is on the right setting.

What causes a thermostat to fail?

Thermostats fail because they become weak, stuck open or stuck closed. When a thermostat is stuck open, coolant constantly circulates and the engine takes longer to reach operating temperature.

Will an engine overheat without a thermostat?

A lack of a thermostat actually caused the car to overheat faster. The purpose for a thermostat is to get the engine temperature up but it also serves to introduce turbulence prior to entering the block to prevent laminar flow, which can lead to overheating.

How much does it cost to replace car thermostat?

It plays a very important part in the regulation of temperature in your vehicle so when something has gone wrong with your thermostat you definitely need to get it repaired as soon as you possibly can. The cost of getting a thermostat replaced in a car is about $200 to $300 on average.

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Can thermostat cause car not to start?

Though a hot engine is one of the signs that something may be wrong, your engine could also start running cold. A cold engine is also caused by a bad thermostat and can affect the operation of your car. Keep in mind that the main function of the thermostat is to allow hot coolant to move through to the radiator.

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.

Is 160 or 180 thermostat better?

A 180 degree thermostat is the General Motors recommendation for ZZ430 engines. Nascar engine builders have proven that engine make more power at 200 degrees plus than at 160 degrees. If you run a 160 thermostat and the engine runs over thatyou have NO thermostat, in effect.

What happens when you remove a thermostat?

Typically removing the thermostat will cause the engine to overheat at normal operating RPM. When the restriction is removed by removing the thermostat, at idle too much coolant will flow typically causing the engine to fail to reach it’s designed operating temperature.

Will a bad thermostat cause overheating?

A broken thermostat can also cause your car to overheat. The thermostat in your engine controls the flow of coolant. If the thermostat fails, it can stick shut. This will keep the coolant from ever entering the radiator and your engine to overheat.

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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 stuckopen thermostat

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