Question about 1999 Kia Sportage

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2000 kia sportage no heat

My sportage i bought never blew hardly any heat so i ordered a new after market core for it. pulled heater box and come to find out i have odd ball heater box that takes a 6in.by 6in. by about 3/4in core u can only get from kia that their mechanic told me was pretty worthless here in northern minnesota. so i tig welded ends on the a/c core to hook up water lines and use it as a heater core its a ft.by a ft. by 2in. figuring it would have better heat. no luck its worse. only throws heat going up hill or down the freeway,when the motor is working hard.the feed hose seems hot but the return is much cooler.my question is, it does'nt seem to be curulating the water. is there check valves or something on these vech.? the feed comes out of the thermostat housing and the return is to a housing on the water p/u side instead of feed on intake manifold and return to the radiator like in the old days

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  • printertech Feb 16, 2009

    2001 KIA sportage heater fan not comming on

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You might also consider using the heater core as well as the modified evaporator. It probably would'nt be hard to tee off to both cores with the water lines. "Just a suggestion"
Good luck.

Posted on Apr 02, 2009

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It may be that the thermostat is not the proper one needed to regulate heater temperature operation. Check the thermostat. It may be rated lower than necessary to allow for heating purposes. And if you dare, you might try (for winter purposes only) installing a thermostat of a higher rating so the coolant will need to run about 20 degrees hotter before opening and thus making the heater core a bit hotter to facilitate better heating, if you can locate a thermostat of the same size that is which will fit a Sportage housing.
It seems to be determined that the core is not plugged or else this would have been my first bit of advice for you to address. If youre determined to continue with your own retrofit core make sure the housing you install it is sealed to allow your fan or blower to pump this heated air into the vehicle and not outside into the engine compartment. I hope this might prove useful to your endeavor, good luck.

Posted on Mar 05, 2009

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