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It will run cooler, be inefficient and wear more quickly.

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Q: What will the engine do if the thermostat in the vehicles engine stuck open?
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Related questions

Why does sable engine run cold?

Stuck open thermostat.


How do you know when to change your thermostat on a 1995 camaro z28 LT1?

A thermostat can be stuck open or closed. If the engine runs to cool it is stuck open. If the engine is running hot it is stuck closed. If you don't have these problems you should'nt have to change it.


A stuck thermostat usually has the following symptom?

Overheating if stuck closed, no engine heat if stuck open.


Why isn't engine heating up?

The thermostat is stuck open or missing.


Why does the temp gauge read low when the motor is warm and the thermostat is open?

The thermostat is probably stuck open, even when the engine is cold.


Why does your ford van engine will not warm up?

Thermostat is stuck open. Replace it.


How do you know if your thermostat is shot?

If the engine is overheating, the thermostat is stuck closed. If the heater is not putting out enough hot air the thermostat is stuck open. Change the thermostat as a normal part of maintenance when changing coolant.


How do you know if the thermostat went out in a Chrysler lebaron?

If the thermostat is stuck open, the engine will never warm up to proper temperature.


If a thermostat in a vehicle's engine stuck open what will happen to the engine?

If the thermostat is stuck open, the engine will be slow to warm and may not reach normal operating temperature. As a result, performance of the heater will be poor. Fuel economy will probably deteriorate. And the vehicle may fail emissions testing (if this is required where you live). Furthermore, engine wear may be accelerated in the long term. For all of these reasons, if a thermostat is stuck open, it should be replaced as soon as possible.


Stuck open thermostat make it run hot 1986 Honda prelude?

No, generally an open or missing thermostat will make the engine run too cool.


What could be the reason for the engine not warming up on a VW Beetle?

It could be that the thermostat is stuck open.


Why would you have no heat in your 98 Chevy Blazer?

Check the engine thermostat. Its probably stuck open.