Q: Move your vehicle outside so exhaust fumes can escape. Put your vehicle in park or activate the parking brake before turning on the engine. Let the engine run throughout the entire test so it can heat up the coolant inside. If you’re worried about your vehicle possibly moving, put blocks in front of each tire to keep it in place. Take an initial temperature reading as soon as you start your vehicle. Locate the thick black hose that runs from the side of the radiator to the top or side of the main engine block. Point the infrared thermometer where the hose connects to the engine and pull the trigger to measure the temperature. Wait until the number on the thermometer settles before writing the temperature down. You can buy an infrared thermometer from your local hardware store or online. Point the thermometer at the black radiator hose connected to the engine so it’s about 3–4 inches (7.6–10.2 cm) away from where you recorded the first measurement. Pull the trigger on the thermometer to take the temperature of the hose. Write down the measurement you found so you don’t forget it later on. The temperature for the radiator hose should be lower than the temperature of the engine. If they are the same, then the thermostat is stuck in the open position. Let your engine continue running for at least 10-15 minutes so the engine can heat up to its optimal running temperature. Record your measurements from the same places you took them earlier and write down the results so you can compare them. Watch the engine temperature gauge on your vehicle’s dashboard to see if it enters the red danger zone, which means the engine is too hot and could overheat. If you notice your vehicle overheating, turn off the engine right away to avoid causing further damage. Look at the temperature of the engine and the upper hose after your vehicle has run for 10-15 minutes. If the temperatures are within 10° Fahrenheit (18° Celsius) of one another, then the thermostat is working properly. However, if the hose is still substantially cooler than the engine, then there isn’t any coolant running through it and the thermostat stayed closed. If the hose is the same temperature as the engine but it’s still overheating, then there may be another problem with your vehicle instead of the thermostat.
A: Start your vehicle to let the engine idle. Check the temperature of the engine with an infrared thermometer. Take the temperature of the upper radiator hose. Measure the temperatures again after 10-15 minutes. Check if the measurements are within 10° F (18° C) of each other.

Q: Make the mixture with cold water. Pour 16 fluid ounces (470 ml) of water into a bowl. Combine it with about 16 ounces (450 g) of flour, stirring until the mixture is smooth.  This mixture will create an inexpensive, non-toxic paint that can be used to give walls and other surfaces a matte finish. This paint is similar to store-bought paints, so it will last for many years. Pour about 1 ½ cups of water into a pot safe to be heated on a stove. Turn the heat on the stove up to high and wait for the water to boil. Lower the heat, stirring the mixture continually with a whisk or another mixing tool. The mixture should turn into a thick paste within 3 to 5 minutes. Once it becomes a paste, remove it from the heat. Check the paste’s consistency to ensure that it is thick. If it seems runny, give it more cooking time. Use only cold water so the paste doesn’t thin out too much. Slowly pour it onto the paste, mixing the entire time. The water will thin the paste to a paint-like consistency as you stir.. Adding the water too quickly can thin the paste out more than you want, so it won’t be thick enough to cover your walls. In a mixing bowl, combine about 8 ounces (230 g) of screened clay filler with 4 ounces (110 g) of a powder filler such as mica or iron sulfate. These ingredients give the paint color and stability, preventing unsightly peeling and cracking on your walls.  Screened clay can be ordered online or from landscaping companies. Powder fillers are often available at home improvements stores and can also be purchased online. Slowly add the clay mixture to the paste, stirring it the entire time. Mix the ingredients together until the paste reaches the consistency you desire. You can then spread it over your paint surface with brushes like you would with any regular latex or oil paint. You can thin the paint further by boiling it for up to 30 minutes, then mixing in about 32 fluid ounces (950 ml) of linseed oil. Let it cool to the touch before using it. Brush the paint over your painting surface, then wait for the paint to set. The paint will dry out in about 1 hour and cure within 24 hours. You may then wish to give your painting surface a second coating to make it look great. Move the excess to a sealed container, such as a paint can, in a closet, garage, or similar area.  Properly-stored paint should last 5 to 10 years. You can also leave the excess paint out in the open to dry, then dispose of it in the trash.
A:
Mix cold water and flour into a mixing bowl. Boil 12 fluid ounces (350 ml) of water on the stove. Turn the heat down and stir the mixture into a paste. Stir 16 fluid ounces (470 ml) of cold water into the paste. Mix screened clay and powder filler in a separate bowl. Add the filler material to the paste. Use the paint and store the excess in a sealed container.