Overheating problem

Asked by May 21, 2019 at 05:52 PM about the 2004 Kia Sorento LX 4WD

Question type: Maintenance & Repair

I have a 2004 Kia Sorento. I keep having
overheating issues and its driving me crazy. So far
I have replaces the reservoir, thermostat, coolant
temp sensor, water pump and timing belt. The fans
had quit working I also replaced the fans, relay and
all the fuses related to them. The gauge Will start
at the 1/4 Mark and I can drive it about 15 mins
and it jumps to the red. Does anyone have an idea
with the problem could be?

3 Answers


Overheating can be caused by several things. A broken water pump, a sticking thermostat, clogged radiator, collapsed hose, bad radiator cap, air in cooling system. could be a defect in the cooling fan system causing the fan not to operate when needed. There could even be mechanical issues with the engine that cause this. Start by checking coolant flow. Is the top hose hot? if not it's the thermostat. If it is, with radiator cap off see if there is flow. If not, it's the radiator. If flow, purge air from the system (videos on line explain this simple procedure). This covers 90% of overheating problems.

2 people found this helpful.

I have Kia Sorento 2013, my issue here is my car always overheating when drive about 10 to 20 mins.. I try to check physically.. NO leak ( water or steam ) and when I top up the water then run the engine... bubble coming out from the radiator inlet where cap to secure... so anybody knows why and what shoud I replace??

3 people found this helpful.

My 2012 just started blowing hot air after I regretfully put refrigerant in it and overcharged the system. I had it almost completely rid of refrigerant and started over. It's still not cool, or was, but after a hot day on the highway it got hot again. I'm assuming I have a leak somewhere. I also noticed my engine seems to run hot..not to the point of overheating but just a tad over where it used to be, usually at idle. Is this related to the cooling system issues?

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