Question about 2001 Kia Sephia

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How to change the thermostat on a Kia Sephia, 2001? I sudennly noticed the temperature rose to almost the Hot mark so I immediately wound down the windows and turned up the fan full blast and cranked up the heat to max and switched the vents on. I noticed the gauge dropping and then rose again. This happened about 5 times before I made it home. Now I wish to attempt to change it. I can hear the fan running so I know that it is not the fan. Now where is the location of the thermostat?

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Thermostat is located where top rad hose connects to engine,in fact hose is connected to thermostat housing!

Posted on Sep 04, 2009


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1 Answer

Where is the thermostat and how do I replace it?

  • it is located on the engine (block - in the front).

  • Make sure the engine is completely cool prior to working on the engine. Then place the drain pan underneath the radiator. Open the petcock at the base and let out approximately 1 gallon of coolant.

  • 2

    Unbolt the thermostat housing from the front of the engine using the 3/8-inch ratchet and socket. Coolant will pour out at this point, so be ready for it and aim the hose toward the drain pan if possible. Remove the thermostat and the thermostat gasket.

  • 3

    Clean all of the mating surfaces on the engine and thermostat housing using the gasket scraper. Then install a replacement thermostat in the housing, with the thermostat orienting the same way as the original. Then install the gasket and the thermostat housing on top of it. Bolt it in place using the 3/8-inch ratchet and socket.

  • 4

    Open the radiator cap and fill the radiator with the 50-50 pre-diluted coolant. Turn on the car and let it run for 15 minutes while the interior heat is set on the "high" position. Allow the car to cool for an hour, then add any additional coolant needed

  • Read more: How to Replace a Thermostat in a 2001 KIA Sephia '

    Nov 28, 2010 | 2001 Kia Sephia

    1 Answer

    What do the codes PO455 and PO128 mean on my kia sephia? I was told my fuel canister is only purchased at dealer that true>

    P0455= Evaporative Emission System Leak Detected (large leak)
    P0128=Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

    Nothing here says buy a new can!
    it could be as simple as turning the gas cap three clicks past tight,that is a very common thing,The other thing shows you should change your thermostat

    Dec 24, 2009 | 2001 Kia Sephia

    1 Answer

    Car is overheating changed thermostat didn't help

    Without more information, it is possible you have a air bubble in the coolant or a blown head gasket. Check the exhaust for smells of coolant (sweet) and the oil for signs of coolant as well, it will look like a milkshake. If you notice an excessive amount of visible bubbles in the overflow tank then more than likely you have a head gasket problem and the cooling system is being pressurized from the leak. To bleed the coolant system, remove the radiator cap and start the car and you should observe small bubbles rising to the top, again if there is an excessive amount then you have a head gasket problem.

    Aug 29, 2009 | 2001 Kia Sportage

    1 Answer

    2001 Kia Sephia front passenger window

    first check fuse sometimes if you tap on the motor of the window itll work sometimes theyll get stuck.

    Jul 06, 2009 | 2001 Kia Sephia

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    1999 Kia Sportage overheating issue

    check fuse and relay for fan switch. replace both if needed. real cheap fix.

    Apr 21, 2009 | 1999 Kia Sephia

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