Broken thermostat. Common Chrysler problem. Replace the thermostat.
1. Celsius and Kelvin scale are used for all low & high temperature readings. 2.Fahrenheit is mostly used for low temperatures in clinical thermometers or a little lower or higher temperature readings
One of these things is the cause. Thermostat stuck open, replace it. Heater core stopped up, backflush the hearter core, and service the cooling system. Heater temperature control valve defective, replace it.
It's in the thermostat housing between the actual thermostat and heater hose. Has a little insulated wire coming out of it.
NO is the answer. But ponder this. The thermostat works because as the temperature in its base gets hotter it opens and allows hot water to move into the radiator where it cools and goes back to the engine. Transfer of heat and all. But if there is a bad or defective water pump then the hot water does not get there to open the valve and the engine over heats. Too little water can also do the same thing. Is there a problem you are having specficially?
Thermostat stuck open, heater core clogged, or the heater temperture control vlalve is defective.
If you're talking about an automotive thermostat and an automotive heater , then you should go with whatever temperature range thermostat the manufacturer originally specified . If you live in an unusually cold climate , you can go up a little on the thermostat heat range during the cold weather .
It's dependant on what you want. If you live in a hotter climate, select a lower temperature thermostat; that causes the thermostat to open sooner, keeping the engine a little cooler... hopefully. If you live in a climate that is either normally cooler or seasonably cooler, a hotter thermostat can help the heater work better. A hotter thermostat has been demonstrated to be SLIGHTLY (almost insignificantly) at helping the engine run more efficietly.
The varying temperatures found within the summer and winter seasons will have you adjusting the thermostat multiple times through the day. There may be, however, more money being spent in the heating and cooling of your house then actually needed. This extra cost may be caused by inaccurate readings coming off of your thermostat due to bad calibrations. Here are a few steps that can be run through to check and modify the calibrations of your home thermostat. •The first step would be to head down to the local hardware store or drug store to purchase a glass thermometer that uses mercury for readings. This thermometer will be set as close as possible to the thermostat using some sort of adhesive, such as tape or glue. •Once the thermometer has been in place for a few days to adapt to the air and temperature of the home, compare the readings on the thermometer with the readings of the thermostat at one hour intervals. If the temperatures are off by more than five degrees, it may be necessary to re-calibrate your thermostat. •Remove the cover of the thermostat and clean the area using an air cleaner normally used for keyboards and computer equipment. Once that dirt has been properly removed, use a paper towel that is a little damp to clean all of the components within the device. •The next step would be to un-screw the screws holding the thermostat to the wall and then removing it completely from where it is currently housed. There will be wires coming from the wall in a very small opening. The readings being wrong may be caused by the opening being larger than needed and causing air to effect the readings. This area around the wires can be plugged accordingly using a caulking compound and a painter’s stick. •The thermostat can then be reattached with the screws and adjusted so that everything is perfectly straight up and down on the wall. Once the cover has been reattached, the same procedures as before with the glass thermometer should be followed to obtain an accurate reading. •If the readings are still not up to standard, a new thermostat would have to be purchased and installed within your home.
If the temperature gauge is reading below normal operating temp after driving a little while it may be that your thermostat is stuck open. I replaced my thermostat and it fixed mine.
Thermostat tempratures are more a function of the local temperature average. If you live in an area that doesn't get much above 100 degrees and gets very cold during the winters such that you need your heater to work well, I'd use a 195 degree thermostat. If you seldom need the heater, you can get by with a 185 degree thermostat. In either case, if the engine runs a little warmer but still within the normal range, it will perform a little more efficiently and give just a little better fuel economy. I almost ALWAYS use a 195 but then I always keep my radiators clean.
There are multiple reasons for that. First of all the thermostat must installed in the proper way. There is a valve which must at it's maximum vertical position. Also if you have bought an aftermarket part you might made a mistake. It's because aftermarket parts a little higher opening temperature. You have two choices: first one is to buy the thermostat from Toyota; second is to but so called "low temperature thermostat" which opens before required temperature is reached. If you live in a cold state you need to buy OEM part because low temperature thermostat effectively decreases temperature of the heating system.