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Re: location of the thermostat on a elantra 2002
Follow the top radiator hose to the engine and that is where you will find the thermostate housing. drain the coolant completely then pul the housing off. make sure when you put in the new thermostat that you put it in that same way and direction the old one was. clean and dry housing before installing gasket and putting back to gether. refill the cooling system, and run with cap off for 30 min topping of the fluid as needed. run for 15 minutes with cap on making sure to keep an eye on the cars temp gauge. after done drive the car for at least 15 miles let it cool down and ceck the coolant level.
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The thermostat is normally located in the aluminium elbow that the top radiator hose connects to. The elbow is usually held down by two bolts and it is only necessary to remove these to replace the thermostat. It may not be necessary to remove any hoses. Take care that the new thermostat is correctly located in its recess and the old gasketing has been completely removed and that the new gasket has a smear of gasket cement on it. While tightening the bolts, make sure that the elbow is seating evenly and not catching on the edge of the thermostat or you could crack the elbow.
If you follow your upper radiator hose the where it goes into the engine, there should be a short neck that is bolted to the engine where the radiator hose is attched. Remove the hose, and remove the neck, it should be right under that.
There is something called a pigcock, which is usually located on the side bottom of the radiator next to the lower radiator hose. The easiest way to drain your radiator is just to disconnect your lower radiator hose.
The thermostat is most commonly located at the end of the upper radiator hose going into your engine block.