Car overheats, your heat in your car stops working
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.
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
on a what ? because the only conclusion i can say is if u pop the hood and it's not there, it'z GONE.
You know when french onion dip has gone bad because it has water on the top.
feel the top radiater hose and see if it gets warm, if not the thermostat is dead, if your head gasket has gone, check for steam coming from exhaust tailpipe.
when it does not work
It most likely means that your thermostat has gone bad. The engine of your car is running too cold and you need to get a new thermostat installed.
if the indicator light is not getting switched off or on
I had a VW Jetta that had a problem with overheating. It ended up being the thermostat had gone bad so the fan never "kicked on." A car can over heat if there isnt enough antifreeze in the radiator or a bad thermostat or if your fan isnt working properly or is bad
you know when you are not cotrolling the car.
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.