2005 hyundai elantra GT overheats, a real perplexing situation.
108,000 miles --all scheduled maintenance performed.
At approx. 100,000 miles temp started creaping up toward hot with AC on in 85+ degree weather.
I have replaced the radiator
, upper and lower radiator hoses, cap-twice, coolant-twice, water pump, thermostat-twice, and the upsteam H020 sensor on the exhaust manifold.
The upper hose feels hotter than the lower when running, not a whole lot lot hotter but definitely hotter.
Cooling fans seem to be working, they kick on and off.
No visible leaks.
Oil is fine, no signs of coolant.
The car seems to run fine, mpg at 30+ average per tank.
When it starts to heat up past its normal mark of just below 1/2 way on the temp gauge, we usually stop the assent by turning off the AC.
But today it heated up without AC on.
Coolant level was fine. After parking for a 1/2 hour or so letting it cool, got home without a hitch, no more temp trouble.
What the &%$# XXXXX XXXXX on ?
Have managed to not let it get past 3/4 hot on the gauge.