Question about 2003 Kia Sedona
If you are not losing coolant the first things to check are if the fan(s) are engaging and if the thermostat is opening. Start the engine cold and monitor the temperature as it warms up. As it starts to get hot, Gently and carefully grab the upper radiator hose. If it is cool to the touch but the engine is hotter than normal the thermostat is stuck closed and needs to be replaced. At the same time listen and watch for the cooling fan to engage. You should have 2 electric cooling fans. One works off of coolant temperature and the other off of accessory load. Turn on the a/c during this test with the temperature setting on hot. This way you can see if the fan is working while you check the thermostat operation and the fan will engage and help cool the engine if it is operating properly. Feel the hose for breaks in the coolant flow, if the thermostat opens, to detect if air pockets are present in the system. if you have never opened up the cooling system for repair, there should not be any air in the coolant.
Posted on May 27, 2010
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Posted on Jan 02, 2017
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