2000 Kia Sportage no heat

Tiny
TROYH
  • MEMBER
  • 2000 KIA SPORTAGE
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 76,000 MILES
Vehicle was overheating and only blowing cold air through the vents. I replaced the cylinder head, thermostat and radiator. The vehicle no longer over heats, but it still only blows cold air out of the vents. I was able to test the temp at the heater hoses. The temp going into the heater core is 147 degrees and coming out is 128 degrees.I removed the dash to see if the heater box itself is the issue, but all the controls and blend door are working normal. I am pulling my hair out as what could be causing this problem of only cold air. Could you please help me.
thank you
troy
Tuesday, April 6th, 2010 AT 11:08 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,738 POSTS
The hose temperatures are much too low. Suspect a plugged heater core if the rest of the engine is up to normal temperature. Remove the heater hoses at the engine, then run water through them both ways from a garden hose until it flows freely.

Caradiodoc
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Tuesday, April 6th, 2010 AT 11:25 AM

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