Coolant leaking somewhere unknown, have to add to reservoir every 3 days or so, strong antifreeze smell with a/c on. water sloshing sound in passenger side dashboard. bad heater core?

Google search the codes. Could be a hose.water pump.radiator. heater core leaking.

Could it be the water pump

I'm not sure what your "ac drain tube" is, but it is possible that the coolant is what drained out the night before. This means that the coolant is hot. Hot coolant expands and will overflow if the radiator is full to begin with. Most cars provide a coolant reservoir to capture this overflow - and to which to add coolant. If your car has this reservoir, you should maintain the level for HOT or COLD (do not fill to the top)depending on whether the engine is cold or hot. If the coolant level in the reservoir is between the HOT and COLD marks, (not up to the top) and you're seeing coolant on the ground, you have a leak somehwere. A heater core that is leaking usually shows up INSIDE the car - on the floor for the front passenger - directly below the dashboard; as this is where it is located.

A puddle under the car should give an idea as to where the leak originates. Arrange to park on top of a sheet of cardboard so that any leak will drip onto it. Check it later in the day or the next morning prior to starting and driving off. If dry, reposition the cardboard under the car again, and start the engine and drive off the cardboard. Park and retrieve the cardboard and inspect for wat spots. In either case, if water is found, you can use the cardboard to approximate the location of the leak. Bear in mind that the leak could drip onto a part - and floow the part to a low point before dripping on the cardboard.

Some of the underhood A/C components will drip condensate if they are running in hot, humid conditions. This is normal. Condensate is simply water and is odorless and colorless. Coolant, on the other hand - is slightly thicker than water and is usually yellow-green or pink in color and has a slightly sweet smell. Coolant has lubricating qualities too, so it will be slippery. You will probably not be able to tell the difference between the two by looking at it is on asphalt; but touching it with fingers and looking for color & smell will.

A little coolant on the ground is nothing to worry about. Make sure that the coolant level is not dropping consistantly, and you should be ok. If it is always requiring that you add coolant, it is the sign of a leak somewhere.

Good luck!

You can do both. It's always a good idea to top off the radiator, but I would also make sure the overflow reservoir is full too. Make sure the engine is cool before removing the radiator cap!! It is under pressure when hot and can burn you. Also, make sure you add the correct coolant. The Kia should have the green coolant but there are many types now. If you're not sure, just add water. If your system is low, it means there is a leak somewhere which you will want to find.

SOUND LIKE HEAT CORES LEAKING ANTIFREEZE INSIDE DASH.

Check your heater core inside your vehicle, now days their made so cheaply that they don't last long. I had the same problem that you're dealing with, no leaks to be found and discovered that my heater core was leaking inside the cab just enough to smell and I went thru 3 new ones in a week and a half.

I think you have air in your cooling system.It will gurgle and sound like sloshing when you step on the gas.check the coolant jug,make sure you have enough Anti-freeze.If the jug is overfilled it can make a sloshing sound also.If you very low,look at the front of the intake where it meets the heads.I've done a few sets of intake gaskets on this engine. Good luck

Hi there..my name is Keith..and you can just add some water to the reservoir and see if it is leaking..and it sounds like it is..if you had 2 or 3 drops..and if it is..yes..replace it..i hope this helps

try adding it via the reservoir. make sure you have a 50/50 mix of water and antifreeze. If you want to cheat, cheat on the side of more antifreeze than water. Look for a leak in the hoses and water pump to find out if she has a larger problem that is causing the loss of coolant. look for drips under the car.

If you smell antifreeze in the vents, you have a bad heater core. If not, it a sign that the coolant system is either low on antifreeze or has a blocked coolant vent passage.