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A "bad" thermostat is probably one that is sticking. If it sticks open, the engine coolant will circulate through the radiator at all tiimes, making the car hard to warm up in the winter, and slightly less efficient according to the laws of heat engines. If the thermostat is stuck closed, the coolant will never circulate through the radiator, which could cause the engine to be damaged by overheating.
What else can I help you with?
What causes a dodge v6 to run too cool?
If your vehicle is running too cool, you have a bad thermostat. You need to replace it.
Do you need a thermostat?
Vehicle will run without a thermostat - however will not run as efficiently and will have not heat
Can you run your vehicle before the thermostat silicone gasket sets?
Yes
What are the symptoms of a bad thermostat on a rx7?
the temp gauge will run ot then cool that is when the thermostat is opening again
Will a bad thermostat cause a mazdA 626 to run hot?
Yes It Can.
Do you need a thermostat in a car?
A Thermostat enables the engine coolant to heat up quicker. One of the advantages is that the vehicle heater will get hotter faster. When the temprature of the engine reaches about 92 degrees f the thermostat opens to allow the engine coolant to circulate to the radiator which maintains a safe temprature for the engine to run at. A vehicle will run without a thermostat fitted. But it is not recommended on some engines as it may cause a hot spot which could cause the head gasket to blow. A typical example being the Leyland O series engines from the 1970s
What is wrong if the air handler fan has not been kicking on unless you change the thermostat to the run cycle?
Could be a bad thermostat.
Why does your 1988 Cheyenne run hot?
Plugged radiator Water pump Bad thermostat
Can a bad thermostat cause your car to run cold?
If stuck open the car will run cold. If stuck closed the car will run hot.
Why would an air conditioner continue to run when the thermostat is completely off?
It could be you have a stuck fan relay, a contactor that is sticking, or your thermostat is bad.
What cause a Chevy G20 van to run hot?
A bad thermostat or a bad clucth on the fan. Could be timing but not likely.
All about the radiator temperature gage What cause it to run hot?
bad thermostat or water pump
