Question about 2007 Kia Spectra LX Sedan

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2007 Kia Spectra has coolant loss. Pressure test conducted of coolant system, no apparent leaks. Reservoir bottle has been replaced, radiator cap has been replaced, yet vehicle still uses engine coolant. If the bottle is filled to the "F" mark it will be almost empty within 300 miles, yet the Kia dealer cannot locate any leaks. The vehicle shows not signs of leakage, where is the engine coolant going?

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In this case i would suspect the water pump,it would not really show up in a pressure test ,put a paper liner under the car at night and see if any water shows up on it in the morning,if it is ok, then the water could be lnternal ie the engine is taking the water,but 2007 engine should not have this problem unless it has a very high milage.one more [simple] answer is the coolant leaking from a simple loose conaction and drying up before you see it ,but water leaves a trace so have a good look about the engine for that water mark,please rate this answer.adrian,,,,,,,,,,,

Posted on Aug 22, 2010

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Let me know if you found a solution. my 2006 is in the shop for serious radiator issues that no one seems to understand. i had several of the same issue with empty reservoir level. please let me know if you have had any feedback.

Posted on Sep 29, 2010

  • Henry Oct 01, 2012

    Actually I have just now, 1 Oct 2012 looked at this site. I got a bit disenfranchaised with the site when they lead me to a place where I have to pay to get an answer. However, to the solution of my problem. Being as I was an old Army Chief Warrant Officer in maintenance I kept telling everybody to check the cylinder head. Not even the people at KIA would believe what I suspected, after all in their eyes nothing comes off the line less than perfect. Well guess what? Low and behold after fighting the local KIA people for 3/4 of a year one of their mechanics decided to take a close look under a high power magnifying lens and guess what he found. The cylinder head had microscopic holes in it that was permitting the anti-freeze to ever so slightly slip out the tail pipe. It was small enough that it did not even let an odor as anit-freeze should. The vehicle actually came off the asembly line with a defective cylinder head. Moral of the story is - not even the detailed tests which the dealership did caught this error, only through close observation by a sharp mechanic did they find this. Guess they could have saved themselves a lot of time and money had they just listened to an old Army Chieff Warrant Officer that did this for 20 years.

  • Henry Oct 01, 2012

    Further explanation on this problem. What this car also did when we first bought it was it would use a quart of oil every 1,000 miles. Then suddenly the car stopped using oil and began using the coolant. Now the only place oil and water could possibly meet is the cylinder head or head gasket. Since the dealership had already removed the cylinder head once to put a new gasket on, common sense should have told them to do a close inspection of the cylinder head. What really made me angry about this entire thing with the dealership and KIA USA is nobody wanted to do a close examination of the cylinder head until I persisted in bugging them and kept taking it back. When the car was using oil (from new) their answer to me was and I quote, "well it is a 4 cylinder and these 4 cylinders tend to run hotter so they will burn oil" also, "well we (KIA USA) aren't concerned about it unless it would use 3 quarts of oil in a thousand miles". That did not sound right to the old guy and that is why I kept bugging them for a soluntion. Turns out my persistence paid off, they replaced the cylinder head and it has not used a drop of oil or used any coolant since and that has been over a year ago now.

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