Question about 2004 Kia Sedona

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2003 kia sedona over heating and no heat

Temp gauge is reading hot however there isnt the typical steam coming from the engine when it says it is overheating.. and there is no heat coming from heater , blower works I WAS DRIVING TO WORK AND MY CAR STOPPED ... I WAITED FOR A WHILE AND THEN TURNED IT BACK ON AND IT CAME BACK ON BUT THEN AFTER A WHILE STOPPED AGAIN ... THE TEMP GAUGE WAS READING (HOT). DOES ANY ONE KNOW WHAT COULD BE THE PROBLEM AS IT WASN'T STEAMING OR ANY THING AND I CHECKED THE COOLANT THERE WAS ENOUGH ....

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  • bizzymom-5 Jan 31, 2009

    I have no heat and blower works. Flushed the radiator and changed the thermostat. Mechanic can find no leaks, but i need to adding anti freeze to get heat to work on 2004 sedona.



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This Problem is Usually Caused by a Malfuntioning Thermostat. Change the Thermostat and let me know what you get. Please Rate My Solution, I Need all the Help That I can get! Thanks!

Posted on Jan 26, 2009


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06 Kia Sedona overheats when ac is on. If the ac is off the van will return to normal temps. Had the compressor just replaced and v-belt. Both fans appear to be running when ac is on.

Does the engine over heat or the gauge goes to hot. Really hot. Since the A/C is on , this puts an extra load on the engine. This is why the fans come on when the A/C is turned on. This is usually low speed fan mode. High speed doesn't come on untilll 220 to 230 degrees. Most vehicles. Cars don't over heat untill the gauge gets in the red, when it starts getting close is time to worry and stop. I guess the question to you would be, What does the temp gauge read?

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Temp gauge will go to hot & come back to normal,is it thermostat?

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2003 kia sedona over heating and no heat

OOPS ,big mistake ,did you turn engine over with a rachet first to make sure valves cleared pistons

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2003 kia sedona over heating and no heat

Check your rear coolant lines, These lines always rust and start leaking coolant and thats why your engine over heats and you dont get any heat inside your car. This is a common problem with kia sedona that have rear A/C and Heater. There are two fixes to this problem. The first is to replace the rear heater coolant lines with the updated lines from kia. The second will be bypassing the rear coolant lines with a hose, however the rear heater will not work with this method.

removing the rear coolant lines is not that easy. The lines near the fire wall are really hard to remove. Its also much easier to replace the lines with the car on a hoist.
hope that helpfull

Kia mechanic

Dec 29, 2008 | 2003 Kia Sedona

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