Faulty thermostats can manifest themselvs in several ways. Some stick open, some stick closed and some stick in one position for a while then suddenly open or close. The ones that stick open will never allow the engine to completely warm up and you will get cold or cool air coming from the heater. The ones that stick closed will cause the engine to warm normally but then the temprature continues to climb and you can loose coolant and possibly harm the engine. The ones that stick for a while are interesting because the vehicle will run cold then turn warm quite rapidly or more likely the thermostat will stick closed and not open until the vehicle is quite warm and possibly you have started to loose coolant. In any case, the easiest way to detect a bad thermostat is to replace it. If the problem goes away, it was the thermostat. If you REALLY need to know if the thermostat is bad, remove it from the vehicle, put it in a pan of water and bring the water to a boil on the stove. Watch the thermostat. If it opens smoothly when the water gets to the designated temprature then the thermostat is ok. If the thermostat opens suddenly, fails to open or is open when you remove it from the vehicle, the thermostat has failed.
how do you know when thermostat is bad in 19997 Pontiac sunfire
how do you know if the thermostat for the ford escort sport 1999 is bad
low fluid,bad thermostat, cooling fans are not coming on,bad water pump
if the indicator light is not getting switched off or on
when the car overheats or you have poor heat coming out of the heater.
your temp guage will sky rocket if its bad, you may even have coolant a coolant leak (comming out of the the housing of the thermostat). replacing it is easy and cheap.
most common would be low coolant or bad or open thermostat
It may be the water pump.
You will know of your thermostat is going out when your car overheats, then turn on your heater really hot on full blast, then the temp will instantly drop. This is a sign of a thermostat gone bad.
Car overheats, your heat in your car stops working
what are the symptoms of a bad thermostat on a 1997 Chrysler Sebring Lxi what are the symptoms of a bad thermostat on a 1997 Chrysler Sebring Lxi
For the cost of a new one, if you suspect it might be bad just replace it.
One Coolant Hose is hot and thew other is cold...
If your engine takes a much longer time for the thermostat heat guage to reach its required level of operatiing temperature then the thermostat may be stuck in the open position which means that it will need to be replaced.
Inoperative cooling fan(s) Bad thermostat Bad fan switch sending unit Bad fan relay Blocked radiator cooling tubes (internally)
Yes a bad thermostat would cause overheating in any car. A thermostat regulates the temperature.
No water pump is easy to change. You know it is bad if it is leaking, noisy, or if there is no flow of water when looking into the radiator with the engine running. Replace the thermostat at the same time as the pump if it is bad.
Any sign of overheating, just replace the thermostat. On a 8 year old car it should be replaced and the cooling system serviced.
Thermostat and thermostat sensor (ect) bad
Overheating or no heat from the heater are sure signs it is bad. You car is 12 years old, just replace it if you have a suspicion it is bad. You can test the thermostat but why bother? You will have to remove it to perform the test. Just replace it.
yes, they are in the distributor. Take the cap off, remove the rotor and there it is. The problem could be a bad coil
Remove it from car, then place in cup of boiling water, if it opens and closes properly then it still works, if it doesnt move at all, its bad.
Could be the thermostat not opening
No. The thermostat is not likely to be the cause.