U take the thermostat out, get a pot of water, put the thermostat in it and start it to boiling. When the water reaches the temp that the thermostat is designed to operate at it should open , if not , it is defective
roll down the windows and turn the heater on full blast. It pulls hot air from the engine bay. Also check to see if you have a coolant leak or if your thermostat isn't opening all the way. you can test your thermostat in a pot of boiling water, boil the water to what ever degree thermostat you have. You could also burp the cooling system.
sounds like you installed new thermostat upside down if that's not the problem, you have wrong or faulty new thermostat to test thermostat out of vehicle, place in pot of boiling water and watch to see if thermostat opens
If you have it removed you can put it in a pot of boiliing water and see if it opens.
Remove the thermostat from vehicle. Heat up a pot of water on the stove, insert thermometer in the water along with the thermostat, be sure to fill pot of water to cover thermostat. When temp reaches operating level (180 / 195 ) should be able to visually see thermost open. Get tongs and pull thermostat out of water. When it cools down you should see it close.
When in doubt, throw it out. If there is any doubt the thermostat may be bad, just replace it with a new one. If you insist on testing it, you can drop it into a small pot of water and heat it up on the stove. A 195 degree thermostat should open just before the water boils.
If the smoke if coming from under the hood, then it sounds like your thermostat is stuck closed. Check the heat gauge (if equipped) on your instrument panel. If it is overheating or you don't have one, the next thing to do is pull the thermostat, take it to your kitchen, rinse it off, get a pot of water, place thermostat in pot (if using a nonstick pot, you will need to hold thermostat with tongs or something so you don't scratch the pot), and turn on your stove to high. The thermostat should open at around 195~200 degrees. I the thermostat doesn't open up right before the water comes to a full boil, then you have a bad thermostat and need to replace it.I am not sure where your thermostat is located. That is just a general troubleshooting procedure. you may have to drain your radiator before you can get your thermostat out. Keep in mind that antifreeze is poisonous to animals and humans if ingested and it does have a sweet taste so it is inviting to animals and it is a horrible death for them... If you have to drain it, dispose of it properly and refill with a 50/50 combo of antifreeze and water (distilled water recommended).
Put the thermostat in a pot of water on the stove and boil it. Using a thermometer, check the temp. at which the thermostat opens and closes (most vehicles 185 - 215 degrees Fahrenheit). If no thermometer is available, then just the fact that the thermostat opens and closes around boiling tells you it's working (just not the specific operating temp. which matters in some vehicles and environments).
Your description sounds like the thermostat is faulty. If the thermostat is stuck closed, there will be no heat for the interior. New thermostat's are occasionally bad, it has happened to me. The coolant is leaking from what tube? You can verify the thermostat operation, but unfortunately you must remove it from the engine (but with your symptoms that is the most logical failure). Put it into room temperature water in a pot on the stove. Heat the water and check the temperature at which it opens. This is a near foolproof check, but some thermostats are hard to tell when they open. You might have to pull it out of the water (use care it will be hot) to observe the open condition. In general 180-190 degrees F will be the temperature (water boils at sea level at 212 F) at which the thing is nearly fully open. But that depends on your exact version. The temperature is stamped on some them. For further advice read through the previous posts on overheating or thermostat replacement. Your description sounds like the thermostat is faulty. If the thermostat is stuck closed, there will be no heat for the interior. New thermostat's are occasionally bad, it has happened to me. The coolant is leaking from what tube? You can verify the thermostat operation, but unfortunately you must remove it from the engine (but with your symptoms that is the most logical failure). Put it into room temperature water in a pot on the stove. Heat the water and check the temperature at which it opens. This is a near foolproof check, but some thermostats are hard to tell when they open. You might have to pull it out of the water (use care it will be hot) to observe the open condition. In general 180-190 degrees F will be the temperature at which the thing is nearly fully open(water boils at sea level at 212 F). The temperature your thermostat opens depends on your exact version. The temperature is stamped on some them. For further advice read through the previous posts on overheating or thermostat replacement.
How to test a thermostat Most thermostats are rated to open at 190 degrees Fahrenheit. Testing the operation of a thermostat is simple: Get a pot of water heating on a stove, suspend the thermostat in the water by tying it to something that can hang across the top of the pot with some ordinary string, use a thermometer (one that can at least stand the boiling point of water which is 212 degrees Fahrenheit). Put the thermometer in the water along with the setup and watch the temperature. At around 190 degrees, the thermostat should open up indicating that it operates normally. If not, then it is defective, or it is rated to open at a different temperature. There is usually a stamp or engravement at the butt of the thermostat that shows its temperature rating.
Sounds like the thermostat has stuck shut (gone bad). It's located where the to radiator hose attaches to the engine. To remove it loosen the hose clamp from the water neck then slide it off. once you've done that remove the water neck which is usually held on with two bolts. once you remove that the thermostat is right there. Just pry it off with a screwdriver. Do everything in reverse to replace it. Hint: To check to see if the thermostat is bad you can put in a pot of water and bring it to a slow boil. If it doesn't open when the water is boiling that means it's bad.
first i would check the thermostat to see if it is opening,get a temperature gauge and heat the water in pot till it reaches 180 degrees and put thermostat in water and see if it opens all the way.it could cause you to have a blown head gasket,make sure your belts are good and tight to where your water pump is working right.