Question about 2003 Kia Sedona

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Rear heat quit working in 2003 Kia Sedona?

Blower works! It blows out cold air

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I had the same problem back in 2007 0n a 2003 Kia sedona xl found out that there ate copper tubes running from the rad to the rear heater had small pin holes in those tubes'. Had to replace the tubes but if you get it rom Kia it will be pricey. Try a auto parts shop they maybe able to help you. But also check main rad if you see any leaks or coolant on the grond may have to replace rad at same time

Posted on Jan 29, 2013

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Posted on Jan 02, 2017

pops296
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SOURCE: heater blowing cold air

Component locations... 9_29_2011_6_45_48_pm.jpg9_29_2011_6_47_00_pm.jpg

Posted on Sep 29, 2011

autotherapis
  • 501 Answers

SOURCE: 2003 Kia Sedona, A/C stopped blowing cold air without any warning

do a pressure test. You may have lost freon to the point where it will not let the compressor come on. If you do not have any gages or access to a gage, buy one of the cans of freon that has the low pressure gage attached. Make sure you get the one that has 134A with sealer. The pressure should be about 100psi not running and go down to about 60 when it is running. IF you have a slow leak and the system is low, the compressor will not come on. If you get very low or no pressure when you hook up the can, don't waste your money, have the system checked for the leak. You must vacuum the system down to 30 inches of vacuum before refilling if it is empty, and it does not good to fill it if it is just going to come back out.

Hope this helps
Rich

Posted on Aug 24, 2009

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SOURCE: Heater doesn't get warm 2004 Kia Sedona. Shop

most likely its a blend door issue but possibly heater core

Posted on Sep 25, 2009

  • 1 Answer

SOURCE: 2005 kia sedona - no rear heat

Look on your dash on the ride side of your radio, there are 4 black squares, the botton three are usually blank, the top one says RR HTR, push that one in. If the heat does not work than join the club, mine has only blown warm heat in the last 2 years. I've had the rad flushed and all the rear lines replaced. moz-screenshot.jpg

Posted on Dec 13, 2009

Testimonial: "Why is it the simple things are so hard to find. I had it on at one time, but it must have gotten bumped. Thanks for the reminder."

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SOURCE: 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

Posted on Feb 02, 2010

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1 Answer

My heat. blow cold air what is wrong with it it is a 2003 kia sedona ex


you have to bleed your cooling system with the heater on until all the air is purged out of it then it should heat up quickly.

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First I would check your radiator fluid level, sometimes being low can have this effect. Usually the rear heaters sit at a lower level and so keep working. If that is fine, then you probably have an issue with the diversion door or controller that controls the hot/cold mixture.

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kia-sedona-center-third-row-heating-ir03o0ur3ff3pxc4zrfsqvc4-3-0.jpg

Nov 13, 2013 | Kia Cars & Trucks

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2003 kia sedona has no front heat, rear hear works ok


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I have a 2003 Kia Sedona. The A/C Compressor will not kick in. Checked all fuses and relays and nothing? A/C was working good then all at once it quit.


Same happened to ours- full of coolant but no cold air. Turned out to be selector switch in the console. Replaced and worked fine for about a year, now works only intermittently again.

Jun 05, 2010 | 2003 Kia Sedona

3 Answers

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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