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2005 kia sedona overheating


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candigrl63
Novice

Apr 17, 2015, 10:29 AM

Post #1 of 11 (5159 views)
  post locked   2005 kia sedona overheating  

hello. i'm at my wits end and out of money. my kia sedona was overheating so we replaced the thermostat and waterpump. still overheating. told it was radiator. replaced radiator . still over heating. top hose of radiator gets hot but bottom hose does not. took out thermastat. ran car. still over heats and no water flow in bottom hose. ran water thru radiator to make sure no blocks. water runs through. fans are working. any suggestions? thank you


(This post was edited by candigrl63 on Apr 17, 2015, 10:30 AM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 17, 2015, 10:41 AM

Post #2 of 11 (5151 views)
  post locked   Re: 2005 kia sedona overheating  

Does the heater blow hot?





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candigrl63
Novice

Apr 17, 2015, 4:36 PM

Post #3 of 11 (5138 views)
  post locked   Re: 2005 kia sedona overheating  

hello. yes the heater blows out hot.


Discretesignals
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Apr 17, 2015, 4:39 PM

Post #4 of 11 (5133 views)
  post locked   Re: 2005 kia sedona overheating  

Does this overheat while your driving, sitting at stop lights, or both? Did you reinstall the thermostat?





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candigrl63
Novice

Apr 17, 2015, 4:47 PM

Post #5 of 11 (5130 views)
  post locked   Re: 2005 kia sedona overheating  

yes we reinstalled the thermostat. gauge goes up at stops , goes down when driving.


Discretesignals
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Apr 17, 2015, 4:54 PM

Post #6 of 11 (5127 views)
  post locked   Re: 2005 kia sedona overheating  

How high does the gauge go? When it is running hot and the air conditioning isn't turned on are the cooling fans running?





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candigrl63
Novice

Apr 17, 2015, 4:56 PM

Post #7 of 11 (5124 views)
  post locked   Re: 2005 kia sedona overheating  

the gauge goes all the way up. the fans do turn on. one is on. then the other turns on if air conditioning is on.


Discretesignals
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Apr 17, 2015, 5:00 PM

Post #8 of 11 (5121 views)
  post locked   Re: 2005 kia sedona overheating  

Does the one fan that is running, when the ac isn't turned on, run and then turn off while the engine is running hot. If you put your hand behind the fan while it is running, is the air blowing out really hot?





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candigrl63
Novice

Apr 17, 2015, 9:28 PM

Post #9 of 11 (5108 views)
  post locked   Re: 2005 kia sedona overheating  

not sure if the fan goes off while over heating. but it does run when it is overheating. also we can let the car sit for hours but when we go to start it up the gauge goes straight up to just above the halfway mark instead of starting out low.


Tom Greenleaf
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Apr 18, 2015, 1:04 AM

Post #10 of 11 (5104 views)
  post locked   Re: 2005 kia sedona overheating  

Late night shift. OK - if gauge is reading even middle to hot after hours of sitting you have at least a problem with the gauge and may not be overheating at all. It's critical for the car to know (and you) what is real and if not to fix that. I doubt you are overheating now with heater working and you didn't mention it barfing out coolant or I missed that now I think you need to check actual sender for engine temp which may or may not also be part of what turns on fan for cooling engine coolant not just for A/C use - some of those two fans set ups do NOT cool the coolant for engine much or well so do?


Please don't burn yourself checking by hand and feel. It would be best to read actual engine temp at thermostat housing with a touchless infrared thermometer if really thought to be running hot if other symptoms don't exist.


General for sensors for temps: One is to show/send info to the gauge you see inside and may double as info for engine things like the fans or sending info on to engine controls for fuel delivery - not sure on every exact set up. Those are at thermostat's housing one or more.


Fans are triggered by A/C request or usually a sensor on an end tank of radiators.


#1. Make sure they are all plugged in properly then testing either senders, wiring and more would be in order.


I'd choose testing with the infrared thermo first on this when known full of coolant. Test at thermostat as said, output air of heater would be about 20F lower than actual engine coolant temp +/-. Most thermostats are about 195F and some fans are NOT triggered till a bit higher than that.


BTW - Those "infrared" thermos can be bought cheap or super high end expensive. Lower than $15 buck up to $100s. Little key fob type should do for this. Sold at Radio Shack type places, Harbor Freight, Ebay and the like too.


Gotta know what is really happening when and where now,


T



candigrl63
Novice

Apr 18, 2015, 12:54 PM

Post #11 of 11 (5090 views)
  post locked   Re: 2005 kia sedona overheating  

thank you so much for all your time. i printed what you wrote out. will check this out. Smile






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